Does anyone miss the old Doran's Ring mana sustain?

Where you gained +4 mana upon killing a creep...? Now you have to wait every 5 seconds to gain 5 mana.

I like that they added the On-Hit bonus on creeps, which helps with last hitting creeps but the mana sustain change just feels almost non-existing.

And you as a mage can get easily outpushed by other champions now, that is if you're playing a champion who has high mana costs.

So now you have to waste all of your mana or you're going to miss cs. Kinda makes me sad.