Like you said, as much as RE2R changed some sections, at least they didn't remove any vital parts. They were all expanded upon and we were even given some completely new locations like the orphanage and gas station. That's how you do a proper remake.While I don't mind the action scene upon action scene (I'm a RE6 fan...oh well...) I do agree that it's hard to call RE3 a Remake. I still didn't finished yet (had a busier weekend than I expected, but I'm taking it slow and enjoying the game). In RE2R, you had the three main locations (even if the sewers and the Lab were entirely different places than the original) and people liking or not the "new" story, It's fair to call it a Remake. In RE3R's case, I suppose we could call an "Reimagination" of RE3. A new take on Jill's escape from Raccoon City. Is this a bad thing? For me, no. For some people it might be. I do miss this one classic location (the other two setpieces people complained about I couldn't care less. RE3 was my favorite of the original trilogy, but these two locations were so freaking bland...), but I'm having a lot of fun with the game.
RE3R also feels smaller. Not only are the levels fewer and smaller in size, but they are not even inter-linked! Meaning that you can't walk from the substation to the RPD, you can't walk from the RPD to the hospital, etc. There's no way to backtrack the city which is what made the OG so good, like when you revisit uptown and downtown. Instead the level-skipping is done via cutscenes that teleports you to the next set-piece, and then to the next, and to the next.
What bugs me the most is that the foundation is there. You got the basic structure of an inter-linked Raccoon City, but they choose to limit the experience in favor of "cutsceny" action chases with Nemesis.