Couldn't be further from the truth. The quality of instruction has skyrocketed and the online resources available for learning the game's underlying theory is leaps and bounds above what the old masters had available to them. Yes, the players of today have a huge edge over those of yesteryear, a much easier path to developing excellence in fundamentals, decision making and game theory.
That said, you make an important point. Better equipment and playing conditions are certainly part of the explanation for why today's players play with a technical excellence that is leaps and bounds above their counterparts of fifty years ago.
