It's absolutely whataboutery. He just didn't say what about. You could also call it deflection. Lot of very precious types on this forum. And to answer the question, no, I never thought it at that time.
There were some very close run seasons.
United dominance:
1992-93: 10 points over Villa
1993-94: 8 points over Blackburn
1995-96: 4 points over Newcastle
1996-97: 7 points over Newcastle
1998-99: 1 point over Arsenal
1999-00: 18 points over Arsenal
2000-01: 10 points over Arsenal
2002-03: 5 points over Arsenal
Juve dominance:
2011-12: 4 points over Milan
2012-13: 9 points over Napoli
2013-14: 17 points over Roma
2014-15: 17 points over Roma
2015-16: 9 points over Napoli
2016-17: 4 points over Roma
2017-18: 4 points over Napoli
2018-19: 11 points over Napoli
I know that are different eras, different Leagues, different economic moment…. but I don't see a big difference in this stats (with only exception of Arsenal in 1998/1999). So I don't know from where it comes the "whataboutery" thing…… Pretty legit question from my point of view.