I'd rather put something useful also to left click than a spell with 5m CD to my 5th slot.

There are big spells with 2m CD in Diablo 3 and there are builds around them with really toxic gameplay. You stack CDR to lower it to like 1m so you're a God for 10 seconds every 1 minutes and you spend the rest of the time running around doing virtually nothing, waiting for your big boy spell to pop up. I don't want that crap here.

LoL you have apocalyptic forms as a badass spell. They actually do considerable amount of damage, and give you alot of toughness, if you arent specced into another ailment shitbuild of course.

How could something MORE be bad?? ... If you don't want it, don't use it! ;)

Because just like D3 they would become mandatory. I can't think of any endgame build in D3 that don't use the big cooldown ultimate skills. Would rather they fix whats here before adding new skills to the game.

This is an ARPG big cooldowns should NEVER be in an ARPG....