I think the verdict is already in. GS and great attributes mean nothing this season. This whole season you are witnessing 10k guys playing straight up against 80k guys and actually competing. In seasons past, that matchup would have meant a total blowout.
Look at my last cup game. The opponents best players are inept GS and he kind of hangs with me most every quarter. It used to be that Div I and Div II teams could save one or two of their better players for the cup and, barring injury, just destroy a div III or lesser team in the cup. If this is how its going to be, there is no reason to ever train a player any more beyond 20k.