Yeah I think it's less that people are setting unrealistic expectations for a Bethesda game, and more that people are getting fed up with being told they should be happy with all the faults "because it's Bethesda".
Bethesda gets a really weird pass in the gaming industry and when it comes to shallow content and bugs. I think a lot of that comes from the modability of their games, so that with mods and a few years of patches, the games often end up being a lot of fun - but the fact is that the games themselves, as released by Bethesda are usually hollow shells by comparison.
For instance it always irks me when people say Skyrim VR is the best VR game - you literally need a couple dozen mods just to make it function as an actual VR game (lack of 3d audio in a VR game is just unforgivable imo, let alone any actual physics interactions).
I think people are just starting to get fed up with Bethesda's business model of building barebones games and counting on modders to make it fun. And then people get further fed up when they say so online and get told things like "but yeah it's Bethesda, what did you expect?"