Then why do you do it? I have missed more content because I don't take a lot of LRs than I've seen, and if it weren't for YouTube, I wouldn't even know it, well, largely, some I do find out about here, after all. I haven't felt "encouraged" to do that, and I'm not even a big stickler for the rules, so why is it a problem for you, if you are a stickler for the rules?
It's a problem at the very least because it's a loss of content for no reason. Most of the cutscenes don't need to be tied to long resting: Gale can (should be able to) talk to us about the Weave literally any time of day, etc. Only like 4 cutscenes require night-time: Astarion, the party after defeating/invading the Grove, and the initial tadpole-sickness one.
Also, the game doesn't warn you that this will happen. Many people familiar with D&D design (or who just treat the tadpole problem as seriously urgent) will end up delaying long resting. And they'll be punished for this by losing out on content, not realizing they missed things until (hopefully not that much) later in the game because the game doesn't warn you of this. Which can just be a sucky feeling, and makes it seem like BG3/Larian is playing a cruel trick on you. If it was a conscious decision to put off long resting with the knowledge that you'll miss game content, that's a different story. But it isn't.
If you are perfectly fine with missing content, that's fine. You do you. But that doesn't mean others should be fine with it.