Yes, subjectivity doesn't really come into the fact the menus have been reduced - and a decision has clearly been made (for some reason) to focus on the "plain" things, which are often less interesting than dishes I can make myself for dinner during the week.
By contrast, looking at Royal Caribbean's new menus, it appears they have decided not to worry about offering the staple plain dishes every night, and just have a rotating selection of more interesting choices instead.
I don't have much time for this notion that "as long as there's something, and we can eat it, it's fine". The food is a key part of the offer - and for a lot of money. It's not something I want to put up with, just so I can have the honour of being on a Celebrity ship. Some people clearly see that differently, but it's Celebrity putting food front and centre in the marketing, so it needs to be worth the money.