I'm certainly in no position to judge the strength of elite rowers. When I read the McNeely article, I interpreted it as essentially minimums. McNeely contributed the strength training chapter in the book Rowing Faster and he wraps it up with this sentence.
If you currently are able to meet these goals, you can focus your training on other areas. If you can't meet these goals, strength may be holding back your rowing performance.
. Rowing Faster - 2nd Edition (Kindle Location 2400). Kindle Edition.
I bet most elites exceed these minimums by a fair amount. I think that the key factor in setting training programs is how to optimize the results (rowing faster over a certain distance) given the constraints of limited training time, and the interference of different types of training with each other.
Doing weights may bring certain benefits, but it takes time away from time that could be used for aerobic base training and the recovery from weight training may impact the ability to schedule high intensity rowing sessions that are needed to provide training stimulus at race intensity.
So, it's a subtle point, but I think what he is saying is that if you meet these minimums, then you will get the best results by investing more training time spent rowing than lifting.
Of course, I've come to the conclusion that I *need* to include strength training in my program for body balance and injury protection, but I don't think it's gonna make me faster. I think it's more a matter of limiting how much slower it might make me.