It actually does, because, the statistic is a statement of fact. You know, the kinds of evidence we rely on regarding arguments. Not opinions, like yours, which indeed are subjective and open for scrutiny as a consequence.

A 2004 poll is relevant, because: 1) Friends was a show made with a 1994-2004 audience in mind; 2) after 10 years of being on the air, with everything in between, being the most accurate in representing the success of the show in each aspect/detail.

Your reference to a 2021 poll is irrelevant on the contrary. Not just because of the fact it is a tiny sample, with 97 votes and counting as of now, but the lack of actuality to what was happening in 1994-2004. You know, being 17 years after .... and not according to the time frame of said period, with which the show was produced in mind.

Also, with Ross & Rachel continue scoring highly as one of the best TV Sitcom couples of all time, is further a remaining testament to the fact that Jennifer and David had the best chemistry: The Best TV Couples of All Time - TV Guide (2015). Wherein they come in #3.

Another one: TV's Most Beloved "Will They/Won't They" Couples

That ,besides: 1) being the first written romance; 2) the longest running romance; 3) all the dramatic plots of the breakup, pregnancy, London and the series finale ... coming down on their series finale reunion.