The whole card reads a bit odd. It's like the flying was added last minute after the art was in and since it didn't fly in the art they had to somehow make it clear as brute-force as possible in the name. And why does a statue grow anyway? Eh, nevermind.
Myth Realized get an artifact version for not that much more.
Source: GamesRadar
I guess this is based on vehicle design. Previously, the abilities are granted as part of becoming a creature.