I think that is good though. I'm as guilty as any when hiking of wearing too many layers when I start off and then leaving it too late before striping a layer off. I recon the faff of taking off your bag, changing layers and then putting you pack back on is too much of an disincentive for many of us and so we carry on hot and uncomfortable and feeling tired early. One of my New Year's resolutions is not dress for stood still when I'm setting off walking and to stop early and take off layers if I'm too warm. I'm pretty much fully warmed up after about a mile anyway so even if its cold I'm only feeling it for a very short time.
We all belly ache on here about pack weight. The lower the pack weight the easier it is to carry allowing you to cover more distance and climb steeper hills in less time, in relative comfort. I recon the wearing too many layers makes me too hot, tire quicker, slow down, cover less distance and make myself uncomfortable. Saving 1000g off my pack weight would cost me well in excess of £500, getting my layers right is free.