no its based on the fact that no bird completely loses its feathers. The chicks would have likely grown with receded integuments, possibly reverting to a display symbol like in the modern variety. If you ask whether a tyrannosaur would overheat with all those feathers the answer is no because feathers (unlike fur) act like a natural air conditioner on the body, they can both warm and cool the body. If one tries to argue about the tail scales I am shoving that aside because one it was found at the base of the tail and two no official paper was published on it making it invalid especially as many modern birds still have their scales. The bumpy idea is more of a bias towards Jurassic park and against commonly accepted science. Look at my gallery for my feathered tyrannosaurs for the most likely scenario for feathered tyrannosaurs and glad I could add to what you know.