Umm, I just said that your post was spot on, which means you can't be wrong...
Sure, players spend time drilling and practicing the fundamentals. The point still stands that by the time they are major league players, they should be fundamentally sound. Being fundamentally sound at a skill does not mean that you no longer practice that skill.
If anyone is to be blamed for the players' lack of fundamentals, it would be the minor league coaching staffs, not Farrell.