Do you expect Putin to invade Tajikistan and do a regime change there? Or cut all their food and water (for a while)? So far he hasn't threatened to do that. And for good reason, the gov't there (unlike that of Gaza *being* Hamas) wasn't backing the ISIS-K boyos, even if their surveillance of a family who already [had](https://www.rferl.org/a/father-moscow-attack-suspect-son-coming-home-dalerjon-mirzoev/32886687.html) one son die in Syria was suboptimal. 

Besides, Israel is considered by and large part of the West. So appeals from Western leaders are more likely to be taken into account there. Russia already considered mostly 'beyond reason' by Western leaders, and so is increasingly its culture. The Western media showed the brutality metted to the 4 Tajiks and [shrugged](https://edition.cnn.com/2024/03/25/europe/moscow-attack-suspects-politics-analysis-intl/index.html) at the Russian TV response/commentary.  (Given [reports](https://news.sky.com/story/torture-24-hours-a-day-survivors-reveal-the-dark-cruelty-of-russias-detention-centres-in-occupied-ukraine-12970745) of how Russia treats Ukrainian prisoners, few had any different expectations at this point.) To say nothing that the West is being a bit busy fighting the Kremlin propaganda [claiming] that this was a West-orchestrated operation.