I disagree, it's not anything I have high in priority or care for at all. "People who don't like file managers" must really be a minority!

The only thing I use icons for is in my ambient toolbars and to make the HDD partitions look nice on the Ambient desktop.

I've been using DOpus Magellan for file managing all the time on my Pegasos and don't see why anyone would go through the pain to use the slow icon system for fiddling around with their files.

Only people who seem to be using icons are old amigans, no windows or linux users I've met have used anything else but a nice normal file manager, so "every modern OS needs it" doesn't sound true at all.

No, let the MOS developers worry about important stuff instead. That's my humble opinion anyway.