Not really.
1) That wasn't Maestro, but an extremely enraged Merged Hulk.
2) Thor entered the Warrior Madness near the end of the battle.
3) The 10x amp is an outlier from Thor #502. When he enters the Warrior Madness, Thor just starts cutting loose. Perhaps the writer meant that Thor becomes 10x stronger than normal when he cus loose but that would still be a very extreme view imo.