Surely some still do, but I hit ever so often with many now who don't, more don't than do, and I can't find the thread but someone here went to a tournament of UTR 10-12 players and they all used stock sticks (no RF) , he did the hard work of asking them all and asking the stringer at the tourney. I bet things have changed quite a bit since 2008 just like the video kind of detailed.
I also mentioned here if someone plays 4-5 times a week maybe they know the RF is the one for them and we can trust their judgment, I very much doubt those complaining about that assessment play 4-5 times a week, maybe they do. So, at least 80% of those using the RF don't play that often all year round, no way. The college players that play that often, the RF is no where near a top choice for current college nor academy kids on their way to college tennis. So, most everyone would also be in the "better served using a lighter racket".
I'm not giving any advice related to tennis elbow, that keeps coming up here, literally sir, with all due respect, the only advice I ever gave and continue to give is the Wilson RF autograph is not the best racket for the majority of those who use it. If that advice causes tennis elbow, I have no idea how because the alternatives I gave were Wilson Blades, Pure Strikes, the Pro Staff regular weight etc., those aren't really light rackets in my opinion and definitely not tennis elbow inducing.