I just had a quick thought.
5E isn't about looking at the changes to the rules by themselves. It's more about looking at all of the rules together, and how they interact and balance each other out. Pretty much any one rule change, looked at by itself, doesn't seem all that big, or, if it does, it can easily be mistaken for a buff/nerf, perhaps made arbitrarily.
But if you look at all the rules together, it seems to me that it makes for a nice, balanced synergy of action/reaction, checks and balances.
...anyway, just a thought.