it may have, who knows. what we know - on-panel - is that he was underpowered, note the adverb in italics. it does not mean the same thing as "depowered" (which is a pretty silly thing to confuse it with).
it's all about degrees, Hulk was somehow underpowered and yet still produced feats that are way above anything the mountain bracing/lifting represents.
since his durability and other attributes are based upon his strength level, it could simply be the case that he was weaker than normal, strengthwise. since we have never seen any limit to his strength we cannot gage these things, what we can state is what is depicted. hence my carefully chosen words.