I still think it's pretty bad and at best it was a very poorly thought out. Even if I get them the benefit of the doubt that they are just being "meta"....yeah I'm sorry it was stupid. They already had the multiverse stuff mapped out even if they didn't have all the details ironed out. This wasn't some minor character from the X-Men universe either, it was one of the more popular characters. To have it end in a d joke was just....bad. It's one of the few big MCU blunders imo.
The "Reed Richards" thing I actually don't hold against them because that was pretty much just internet rumors and theories that people bought into and I don't think they did anything. It was anticlimactic but most of the build up was just buzz on the internet. The Quicksilver thing....they brought that all on themselves.