Quite agree
given the choice of sitting on a parachute or sitting on a seat cushion in a glider, I'll take the parachute. It would improve one's chances quite significantly in the event of losing a wing or similar.
(c.f. K21 struck by lighting some years back, 2 successful bailouts, the Calif breakup even more years back, 2 successful bailouts, mid air at Sutton Bank, only one unfortunately got out, but he survived)
And I've seen quite enough "one jump wonders" bending themselves at our site not to want to do any parachute training. If I'm going to break a leg/hit a barn/tree/powerline I'll take my chance if I ever have to use the chute for real, thanks all the same.
PS I believe the RAF stopped practising 1 engined landings in Mosquitoes because they were killing more people in practices than they were losing with real engine failures. Similar logic I guess. And GA spin training?