I agree, it depends on the interpretation of "earn," or "make it," as Watson said. If he means that literally, i.e., Tiger has to qualify and will not be a captain's pick than obviously that will be harder to do. But if it simply means get back playing and perform well enough to "earn" a captain's pick, then that is completely ambiguous.
Slightly OT but along the same lines - Tiger has had plenty of Ryder Cups. I would still prefer to see him come back, but at this point if I had to choose him earning a spot on either the Ryder Cup team or in the Olympics, I would rather see him in the Olympics. I think he has earned that. Unfortunately there is no wiggle room there though, and he has to qualify.