I guess that's a side effect of the siloing that goes on on Facebook. I certainly heard nothing major about it, and orders of magnitude less than the same/similar people about the Twitter redesigns.
That's because media people cannot do their jobs without Twitter. Since they have the megaphone, everyone hears about their gripes.
In the earlier days of Facebook, say until 2012 or so, there were definitely huge uproars when there were major changes. I think that after a while people just had basic "learned helplessness" symptoms - there weren't really any possible alternatives to FB due to network effects, so they just got used to it.