I suspect I’m not alone in spending more time going up and along than down, and wanting tyres also appropriate for such riding.
I very much suspect that even for those using the push up paths, this is the case anyway.
Modern bike geometry and the marketing surrounding it might lead some to believe that we are all solely riding downhill, but
Marketing certainly, but modern bike geo is better everywhere IMO.
What its really about is priorities for your ride experience.
By all means take a lighter, less grippy tyre, but its likely that you’ll have to moderate yourself more to manage grip – you may be fine with that, or your skill set might preclude you being able to utilise a grippier tyre in the first instance, which makes draggier, grippier tyres seem pointless overkill.
Or you might be speccing your tyres for peak performance under more extreme conditions and be prepared to tolerate the drag, viewing lighter, faster tyres as pointless, flimsy, slidy things.
Or you could be one of those outrageously skilled riders that runs whatever and is perfectly happy to run semi-slicks in a bog and don’t seem to be affected in the slightest.