I disagree about Floyd. It was flavorful, fun, the stage is gorgeous, and it hearkens back to the secrets and hidden stuff in past MK games. It's Fine. Harmless. You don't have to do it or engage with it.
Regarding defensive options, I think pushblock would be pretty cool. I'm not sure of giving everyone armored launchers. While they were useful for defense in MKX, they also made offense disgustingly powerful. People that glaze MKX forget the days of characters doing a barely negative on block string into an armored launcher when people tried to check them.
Or people tossing out armored launchers all yolo dolo after getting hit. Naturally, this isn't some objective failing, just something I don't personally enjoy.
I don't know about a lack of zoning. Sektor has made Top 8s in online tournaments, Quan Chi has placements, and Kitana's zoning has only improved in this last patch.
If your idea of "good" zoning is just locking someone down from full screen like General Zod or Freddy, then I think your view of zoning is limited. I've always believed that you use it to force overcommitments and jumps and other risks the opponent makes to get in, then punish those mistakes.
Foxy Grandpa does this with Sektor/Kitana frequently.
I do think that instructive content creation is severely lacking. I was listening to old episodes of the Kombat Tomb Podcast and between the shitposting there was a lot of good talk about meta and guessing games and just breaking down match ups and such of MK9 and Injustice 1.
Thing is, people will watch Sonic Fox even if all he does is post player matches. Same for Honeybee and others. There's a lack of guide content from a lot of top players and it's a shame.