endless ledge flask rng

After doing several endless ledges and sometimes not finding any medium/large life flasks before ~lv15 (yesterday i found my first life flask upgrade from small on lv18... at the beginning of lvl18 zone) i though it would be nice if there was chest at the beginning of lv6 zone with 1 medium life+mana, 1 large at lv14 or 16 and 1 greater at lv18 or 20

I agree, I was still running a small mana flask at lvl 20 yesterday. I understand that GGG wants EL to be 100% self-found but it's not fun when you cannot even sustain the mana cost of your skills.

Could just add one each of medium/large life/mana to the starter chest.