It sounds like you prefer combats with less risk.
Not in the slightest. I do however prefer combats with less swinginess. As I mentioned before I ran a 4 year campaign using average damage for common enemies. That wasn't less damage, but it reduced swinginess as well as avoided a roll for most foes.
In 5e, I'm worried that if I put 5 orcs vs. 5 low level PCs, because a randomly rolled crit can bring them from d12+3 to 2d12+3 which is pretty easy to bring a character from up to insta-death. And that's not fun for the player, and no way to avoid what is just a statistical blip. So I might put out only three orcs so they defeat them quicker. Less rounds, less attacks per round, less likely for that crit and then a big 2d12 roll.
With 2024, I might put them straight against the 5 orcs. That's a more deadly combat, you can't say I'm avoiding risk. But there is much, much less chance for an unavoidable insta-death, and PCs dropping brings levels of tactics in.
I didn't quote a lot of what you wrote - it's based on a misunderstanding that I like less risk in combats. Plus much of the rest you wrote I agree with. The one part I didn't was:
I like my monsters to be able to push the players to use good tactics and strategies. That will never happen if the stand-and-slug-it-out approach is always reliable, and removing crits increases the odds of that working in any given combat.
I strongly disagree that fights can not use good tactics and strategies if crits only exist on one side. Tactics and strategies have nothing to do with crits. Slugfests aren't reliant on crits to break them up.
I'm fine with removing crits from everyone, but this is a player-favoring rule change that I don't care for- because the players don't need any more favoring. The game is already set up with them having a major advantage against their foes.
Again, this only favors the player
if monster math stays the same. If encounter budgets increase, or monsters get a corresponding boost in their statblock, then it's part of a collection of changes that may not favor the players.
Yes, it's all we know right now. But don't assume that no other changes are coming. Or are possible for you as a DM.