i'm not defending IPS but rather stating my opinion and perspective. i fully understood your post and its context and am in no way arguing with your position. like i said, i don't trust notebook IPS panels to reproduce color accurately. that's probably the polar opposite of being defensive. besides, you did
ask for people's thoughts after all.
"owners trashing" was in reference to the youtube link you posted. one comment said, "This is terrible. I have an x220, and the gamut is trash
. However, I will note that the gamma curve tracking is very good." this person calling the gamut "trash" in such broad context by seems a bit silly when this was never intended to be a graphics display. it's a high expectation to have of something never intended to meet such criteria. but, everyone's perspective is different.
red looks slightly orange on nearly every IPS- and AFFS-based thinkpad ever made. that's the sad reality of notebook color reproduction. they're all off in some way or another.
if there's a point to be made here, it's that your panel might not be unique. without comparing it to a known-good external IPS panel as suggested, it's impossible to say whether your particular panel has an issue or if it's simply relative to other panels you're used to using.
it was also suggested to try tweaking the intel control panel to possibly fix color cast. you could also try the windows color calibrator built into win 7 by hitting ctrl+R, typing "dccm", and hitting 'enter'. this also helps fix perceptual color cast.