Funny part is no one ever said Ony/MC/BWL weren't easy, it was AQ40 and Naxx that were very difficult... IN THEIR ORIGINAL patches.Of course, MC/BWL were made even easier because gear was in its 1.12 state. If you look at pre-raid bis items in 1.1 vs 1.12, the difference is astounding.
Proof once again that "Classic" Wow was undertuned compared to Vanilla.That could NOT have been done in Vanilla.
It's not like Onyxia was a hard boss at any moment. She was killed in Vanilla by 5 people even before BWL was out.
People 5-manned Ony back in Vanilla with a Shadow Priest tanking.The only reason it's easy now is because people have spent 15-years looking at everything.Finally, paladins didn't have greater blessings at this time in Vanilla. That didn't come until AQ.