That's a really dumbed-down oversimplification. And it serves no point, other than supposedly ending a conversation, that you actually obviously want to have, hence you jump in. I see it a lot, and find it quite weird.
There is plenty of time in the window, and had the club wanted to hold out for more, they could have. They are happy to let the players leave for the money offered. It is not 'the best they can do', that's equally as demeaning to the club as the posts you have an issue with where people argue it is low.
We got the same or more than Bernardo's rumoured release clause for other players in their final year, Raheem, Jesus and Sane. We could easily ask for 50m next year even with a year left, and whoever wanted him would still get a good deal. Or even say 40, but without the extra outlay on his increased wages.
The point I am making is, they are making a choice based on more than pure numbers. They aren't doing it because anyone has them by the balls, they are doing it because they want to. And I am saying it is a good thing. Sometimes the protective dismissal is deserved, I get that. This one, really no need to get so defensive.
All this is at the end of the day entirely hypothetical, because there may not even be a release clause. Or an extension, to be fair.
edit. by 'more' I mean more than the rumoured release clause, not what we asked last year or this. And no, we sure as hell wouldn't let him go for a packet of crisps, even without an extension, that's just fucking silly.