Vanilla through TBC was 27 months. TBC was delayed a bit.
I would be fine with them increasing the drop rate, no issue there.
That said raids today are full clearing up to AQ on the first attempt and capable of clearing up to 15/15 Naxx with some guidance. Your typical raid guild was still working on BWL when TBC dropped - it is sort of apples and oranges to compare them as far as gearing from raid drops goes and the time available.