Getting to the hoop is part of drive-and-dish. A good drive-and-dish guard doesn't already have a plan to be a decoy or scorer when he attacks...he takes what the defense gives him. If he can finish when he gets there, he does. If the defense collapses, preventing a good chance to finish, he passes.
It's certainly still questionable whether Bayless will prove to be good at dishing, but mocking McMillan for encouraging one of Portland's best slashers (and someone who played as an attacking point guard until asked to fill in for injury at two guard by Arizona) to work on using his drives to create open jump shots is silly. It suggests a fundamental confusion about how basketball offense works. A slasher who can get into the paint and draw the defense is one of the primary ways to create open opportunities in an offense. MM didn't say "I'm not sure Bayless has the vision to do this" which would have been reasonable. He used sarcasm implying that it's stupid to have a slasher create jump shots for others. It was worded as sarcasm about the very principle, not about Bayless' specific ability to pass.