I think we need to be careful here. Yes, there are more straight shooters in the game than ever before. Not even guys like Strickland and Lassiter shot straighter than Gorst, Filler, Kaci and Shaw.
On the other hand, although the position paths are a little better today on average than those of the last generation, have we ever seen a better pattern player than Rempe, Hall or Souquet? I'd say no.
I think the old timers played better short position than today's pros by a little (probably because straight pool demanded it), but the pros of today play better long and complex position shots than those of yesterday by a mile. Interestingly enough, the best short position player of these times might well be John Schmidt, whose focus usually lay in the game of straight pool.
The old timers were better defensive payers than those of today, as well. Pool's three best defensive cueists of all time are surely Reyes, Pagulayan and Varner and yet there's no heir apparent to their level of defensive wizardry.
Today's players are better than any we've ever seen, but they are not better in every single area of the game. give the old-timers their due.