When Floyd takes a tune up, he always follows it up with a "real" fight. Example: Fighting Marquez and Mosley in a span of 8 months.
In this case, fans are just being a tough crowd. Ortiz is not a tune up by any means, maybe to Floyd he is. IMO Floyd would make Pacquiao look like a tune up. He should use Pacquiao as a tune to fight Martinez, but that would be a mistake, because of the disparity in skill and size between Pacquiao and Martinez, which Martinez is superior in both.