Not really the generation gap. Although a wrinkly now, I admire greatly some of the current crop of young andf young-ish singers/performers - Kathryn Roberts, Duncan McFarlane, Miranda Sykes, et many al, none of whom would I describe as twee.
McColl I don't regard as twee, just bloody awful. Just goes to show, as I frequently say on here (and as was the point of my last post), one man's meat etc.....................