Can we explain manaless/resourceless champions?
Of the major mobas (Dota2 and SMITE) , LOL is the only moba with this stupid mechanic where

Special Mentions That Might As Well Be Resourceless Since Their Resource never stops them from doing anything:

People say "Because their weakness is high cooldowns and that their melee"
For how long? for the first 4 levels of the game?
Resourceless champions are not punished for making mistakes with their abilities, you missed that ability? free pass.
Meanwhile
casts an ability at lvl 2 and loses like 40% of her mana pool and has a considerable cooldown.
You have no resource to manage, late game you can just be like "QQQQQQQQQQQQQQQQQQQQ"
"HASAGI HASAGI HASAGI HASAGI"
, "GRAAH GRAAHH GRAGHHHHH" 
What decides if a champion will be resourceless? Why can't they all be reworked into having mana like the rest of them?
Also isn't Riven's unstoppable build have these:
?
I'd be so happy if a spell fell upon all resourceless champions that says
"New: All resourceless champions that have no mana and no resource to manage/or use energy are now immune to cooldown reduction. Buying cooldown reduction will do NOTHING."
sure sure
c: