Only personal thoughts, not judgemental, just to make it clear!
Well I kind of think ALL jeans could be called dated. I don't really like denim stuff as it is, but whilst I agree that the ubiquitousness of skinnies is over, I still don't think they are any more dated than wideleg, boot, flare, mum jeans or whatever jeans in general.
The entire denim thing seems overdone now, to me. Truly overdone and boring. I am glad there are so many more clothing options out there currently, it was difficult to find anything that wasn't jeans focused for nearly two decades.
I get that they are practical, but people saying they're the only thing that works in winter....well i strongly disagree. The coat and boots matter most, no matter what goes under them. I used to do the denim in winter thing and always got wet, heavy and cold. Even tights and a winter midi skirt dry out quicker, and are easily covered by my coats.
I used to get numb cold legs wearing skinnies shoved into dubarry boots, or else flapping heavy wet boatsails with wider leg styles. Piss wet through and then the agony of peeling them off.
I get that they are easy, and can accept other people love the damn things, but i was so sick of them dominating the shops and coat/jumper/boots styles for so long.
And yes i know this is definitely a denim era (historically speaking) so i need to shut up 
It's just one person's opinion i know. I'm possibly the only one !
I see a lot of women desperately trying to find the right jeans and a lot of angst about them, and sometimes i just wonder why they dont just bin them and move on to something else entirely.