Because you’ve run them for years you’ve got the stuff Gene built. The new stuff does not hold up nearly as well. I’ve replaced a couple newer pouches already meanwhile going on 7 years with my originals. And they are literally right next to each other so the see the same abuse. My buddies see the same.
I’ve never tried tacos. I have had kiwis and liked them but from the first mag change I ever did with fast mags I loved them and totally switched to them. I do keep a couple of old USMC speed reload pouches on my training rig but only to backfill my fast mags.