>>50210541>doesn't have direct connection to the earth. ItIt's a burrowing mammal named after a seismic activity that's literally the ground erupting with power what else does it need.
Also, It apparently gets Nature Power which is conceptually the same thing as Earth Power but completely worthless, and there so much overlap between the pokemon that get Nature and Earth Power that Typhlosion may as well get both.
Also, also, this is the same franchise where a fish can beat you up, a body builder can breath fire, and a bird with no wings can attack you with its wings. Thematics is dead at the point, even with Earth Power Typhlosion would still have a worse movepool than 95% of the game but it would at least be semiusable.