Right on the money. This is a prop up fight for Chimaev and hed have to do something really stupid to shit the bed on this one. And the UFC really wants to get rid of some of the old guard like Diaz because there 's really not much they can do with them. They are not competitive anymore (save for few outliers) and imho, they aren't even fan favorites anymore, people have moved on.
Dare I say it, but people have moved on from Diaz. UFC has a bit of a different culture about it now, just look at the Ultimate fighter, and how that has evolved over time. The whole vibe is different, you go back to watch season one or the earlier seasons, and you can see how rough around the edges it is.
This does nothing for me though for Chimaev. If he wins, it's as expected. If he does a flying knee in the first 10 seconds, and knocks Diaz out, I'm still not going to think any more of him. He's expected to absolutely dominate that fight, and the risk is if he doesn't it looks even worse.