There's somewhat of an interesting question. Is the idea of a small bird carrying something much larger than itself, or slowing its fall to any significant degree, merely a question of strength? The answer is no: no matter their might, such a creature cannot carry something above a certain weight or size into the air, as the problem is based around the size of their wings more than anything else. But should a character in Exalted be able to overcome that using magic? The Charm in question is ostensibly based purely on increasing muscular strength, but personally, I would allow Exalted magic to overcome physics in such a manner.

This would probably qualify as a stunt, anyway.