No, there do not seem to be any intelligence officials (who were in their function at that time) who criticised this publicly at that time.
There were, however, many in political functions (linked to intelligence, e.g. in oversight committees) who criticised it. I will provide quotations here, I will add emphasis on their roles.
I will quote a few examples from Politico's 'Treason'? Critics savage Trump over Russia hack comments. Looking at the bold parts, it's certainly no exception that people spoke out. Also notice the time stamp on the Politico article: 07/27/2016 04:30 PM EDT Updated 07/27/2016 06:23 PM EDT. That means those statements below were made on the same day as the press conference.
Politicians without ties to the intelligence community
An aide to House Speaker Paul Ryan, the Wisconsin Republican who has endorsed Trump, added, meanwhile, that "Russia is a global menace led by a devious thug" and that it should stay out of the U.S. election.
People who were in the intelligence community at the time
"It’s just one more example of the reckless and dangerous comments that Donald Trump makes that compromises American foreign policy objectives," said Sen. Ben Cardin of Maryland, the ranking Democrat on the Senate Foreign Relations Committee.
“The United States should not tolerate Russian meddling in November’s election,” said House Foreign Affairs Committee Chairman Ed Royce (R-Calif.). “Period.”
"For years John McCain has been recognized as the leading opponent of Vladimir Putin in the United States - that's why Putin went so far as to officially bar McCain from visiting Russia,” said Lorna Romero, a spokeswoman for Senate Armed Services Committee Chairman John McCain’s reelection campaign. “John McCain will never stop his efforts on behalf of the freedom of the Russian people.”
William Allison, a spokesman for Sen. Ron Johnson (R-Wis.), noted that Johnson — who also chairs the Senate Homeland Security and Governmental Affairs Committee — agreed with Ryan, a fellow Wisconsinite: “Russia is a global menace led by a devious thug, and they should stay out of our elections."
And a spokeswoman for Senate Intelligence Committee Chairman Richard Burr of North Carolina mostly focused on the FBI investigation of the recent hacking attack on the Democratic National Committee's email servers, while noting that Burr has said for “some time that foreign adversaries are intent on gaining unauthorized access into our country’s government and private networks to access sensitive data.”
“As Chairman of the Intelligence Committee, Sen. Burr has an obligation to wait for the FBI and the broader intelligence community to complete their investigation on the source of this cyberattack,” said the spokeswoman, Rebecca Watkins. “Public discussion about attribution and possible responses are premature, at best.”
Sen. Kelly Ayotte (R-N.H.), who serves on the Senate Armed Services Committee, said through a spokeswoman that “it’s critical that all our political leaders focus on keeping our country's communications systems safe from hackers,” particularly in light of Clinton’s use of a personal server.
People who used to be in the intelligence committee who made critical statements at the time, again quoting from the same Politico article:
Leon Panetta, a former CIA director, told CNN's Christiane Amanpour that Trump's comments were "beyond the pale" because he was "in fact asking the Russians to engage in American politics." Later during a panel at the University of Pennsylvania, Panetta ramped up his rebuke, calling Trump’s remarks a “threat to our national security.”
Philip Reiner, a former National Security Council official in the Obama administration, called Trump a "scumbag animal."
"Hacking email is a criminal activity. And he's asked a foreign government — a murderous, repressive regime — to attack not just one of our citizens but the Democratic presidential candidate? Of course it's a national security threat," he added.
And William Inboden, who served on the NSC during the George W. Bush administration, said Trump's comments were "tantamount to treason."
"Trump's appeal for a foreign government hostile to the United States to manipulate our electoral process is not an assault on Hillary Clinton, it is an assault on the Constitution," said Inboden, who now teaches at the University of Texas at Austin.
