The first part also applies to cold storage, like if you leave it off for a while and data will degrade without power as electrons leak out. Something that might be a concern for data archival on these drives.

I don't think they do care now, I'm not super worried about it but I might be if I wanted to get a PC port of a game that isn't on PC now, where the old one is well optimized but the new one isn't. Was the story when I got Okami HD on PC, it's insane how they went from a game which came on an 8GB disc for PS3 and it's 34GB on PC, I know they included 4K in the PC one but the fact it's so much insanely larger makes me think a lot of it was wasted space by not compressing what could be compressed.