Body/Energy solves so many problems (assuming a Perf Shifter)... While I think Endurance should be added to APPs for sure, I just don't think Melees are the reason for it. Laughably, The number of sets that Melee have that help with endurance outnumber the # of Dom primaries, and barely fall short of total dom Secondaries, lol
I only have 1 invuln character (a stalker) and with Body and endurance runs just fine on it. But I do hear you.
For reference:
Melee:
Bio
Electric
Energy
Fiery
Ice
Rad
Regeneration
Willpower
Dark Melee
Nin
Dom:
Psi
Cor/Def/Controller/MM:
Cold
Electrical
Empathy
Kin
KINDA NATURE
KINDA TIME