One more visual
This is since 2002 (beginning of swing data) and everyone with 1000+ PA.
So this ignores cup of coffee players but catches every regular in the last two decades. n = 1015
Yes, if you ignore the positive outliers in the upper left the visual trend is not very strong. You can still see the slope of the mass though and perhaps better in this one than the previous ones.
But we probably should NOT ignore the upper left outliers because that is the hope for Vlad, right? He had a 166 wRC+ last year. He has the talent to have a career wRC+ over 150. It will never happen if he is swinging close to 50% of the time though. In my opinion. In 2021 he was closer to 47%. As he ages, with discipline and practice, he might be able to improve and get to 45% or less? Maybe?
I am not trying to prove anything here. This is just a visual. Ignore the trendline, it's just thrown on there. As far as I am aware this relationship (swinging is generally bad) is well documented already.
https://blogs.fangraphs.com/maybe-hitters-should-just-stop-swinging/
Note also that zone% has trended down consistently since 2002. This means that swinging TODAY is probably even worse than it was two decades ago.
The guys who swung a lot and were still good would perhaps have different careers in this era. Would Vlad Sr. be as good in this age?
Maybe the model for Vlad Jr. should be more Manny Ramirez than Miguel Cabrera???