Onwards to the heart of the matter at hand.
I understand that Potions and Ethers share the same cooldown timer. I may not like it but meh, I get it and it makes sense. They're both in the "it recovers x,y,z' category.
However, stat boosting potions such as Potion of Strength should have their own cooldown timer as they are unrelated to the principle of what Potions and Ethers do. Moreover, their cooldown timer is five times longer.
For example, Potions/Ethers - 1m cooldown.
Potion of Strength - 5m cooldown.
Currently they share a cooldown, which means if you ever want to make use of a Potion of Strength you're out of a Potion or Ether for 5m.
The stat potions already have it in for them due to their extremely short duration.
For a 5m CD, I'd expect the duration to be at least 1m but that's neither here nor there.
Giving stat potions their own cooldown would at least promote their usage better.