I haven't seen it mentioned in any of the countless "omg Bethesda nerfed Destruction melee OP" threads that I've bothered to look over. It seems people either just didn't know about it or decided to completely ignore how to improve the thing they've been complaining about.
I has been mentioned, but a potion is a supplement, not a fix. It also requires you to level up alchemy to use viably, which is fine if you're into alchemy; and even then, it is not really practical. But as it stands, destruction cannot be used as a primary skill. It has to be used secondary to another combat skill such as conjuration or archery.
No one said that destruction is useless in every circumstance. The complaint is that it tops out at around 40 (once you have the best spell, and the two damage perks), and that is way to early for ANY skill to top out. No other combat skill caps out like that, which makes destruction second rate.
The journey between 40 and 50 is a long haul, and it seems longer if the skill you've invested so much time and energy in can no longer be improved in any way, all the while the world gets stronger.
To the OP, thanks for bringing this up. I appreciate you're not trying to start an argument. It is relevant information, but it doesn't resolve the complaint. Only Bethesda can do that.
Cheers,
-PW