I can see where even with f/intecs making it easier to release, because you're only reaching to the boot cuff, if there is a lot of pressure on the pins it may not be easy.
I like the simple durability of my 27 year old nitros, and if you ever come across a pair I'll buy'em from ya.
I tried intecs but the stretch/flex in the plastic actuation levers inside the heel left me stuck in the binding, I ask Fin to make those parts out of metal on the new fintecs but he said "not cost effective. too much cable actuated mechanism in too small of a space imo.