Yea, it's definitely worth being aware of what voltages your batteries deliver. Not even 18650's put out the same voltage as either old or new "rechargable" sizes, so it's always worth paying attention.
Though for normies, the directly plugin-able rechargeables are pretty sweet.
copium huffing noises intensify
... look, I know they'll eventually release ES6. The problem is the people expecting it to live up to ANY hype when NONE of the previous games have EVER been great on their own without mods...