According to this table, Austria is one of the most restrictive countries when it comes to Google Street View coverage ("Only Museum views, business views and ski resorts.").
Germany is also careful when it comes to Street View, but it allows it in more areas ("20 biggest cities and ski resorts only.").
This article deals with pros and cons of Google Street View and it clearly shows that its presence can lead to complex consequences.
Question: why does Austria seem to be much more restrictive as compared to other European countries about the Google Street View coverage?
origimbo correctly pointed out, it seems that Austria's coverage will increase, so my question is about low coverage until July 2017.