I watch a fair amount of series, but I'm not a data hoarder. I see the value in 2GB episodes, but I watch most series on my laptop, my simple 1920x1080 tv or even my phone where that value doesn't make a difference.
If I want to have a theater experience, I'll go to the theater.
Most of the times I just want to enjoy a good story and relax before I go to bed.
I don't have infinite storage and I hate when I want to download something new, but Im out of storage, so I have to delete stuff first.
Anime encoders squeeze the most out of the h265 codec... Its astounding how they achieve great quality video for the filesize, even in scenes with fast motion or odd vignettes/filters
Even the highest quality anime isn't very complex compared to any live-action footage so it compresses incredibly well. The better groups also use vapoursynth filters to fix errors on the blu-rays like bad anti-aliasing and banding. So the best encodes will actually look better than a remux which is never going to happen with live-action.