If you people feel like you should rest after every single encounter ... and you can ... what are you complaining about exactly?

The complaint is that perhaps some of the encounters should be tweaked in difficulty so that they consume fewer resources, so that fewer players feel like they need to do a long rest after every one
I don't think this would fix anything. While some encounters should certainly be made less tedious (40 goblins ugh), combat encounter difficulty isn't really the problem. It's that LRing is so easy and other game mechanics (LR cutscenes, all new dialogue, companions explicitly saying "i'm tired") encourage resting to such a high degree. Sure, if all encounters were trivial, I'd *want* to LR less often. But I'd most likely end up resting the exact same amount in order to not miss content. If anything, easier encounters would make the contradiction in BG3's LR-system-vs-content design even more apparent.