... not only should users able to run their own blind servers but also they should be able to tether their wallets to a server without any Internet connection. I can easily (not really, but still) broadcast a signed message using different means, but I can't sign my transaction in the case of Jade wallet because I can't get my god damn PIN offline. ...
Yeah, it's a step in the "always online" direction that things like gaming consoles and PC Games have taken in terms of DRM and copy-protection etc.
Yes, large numbers of the world are "online" and
mostly "always online"... but that doesn't make it right.

They are looking to go after the Coinbase Gemini etc. type users that want that warm security blanket type feeling.
^^-- THIS! I suspect that might be the reason for the pricing strategy as well...
Personally, I was just curious to have an experiment and see how it all worked in practice... and try a few scenarios to get a feel for the typical and atypical use cases. Certainly would not be advising anyone to actually buy one
