Me, an intellectual:

Gamera, Mothra, AND Rodan can all fly, so destroying the plane would be extremely easy for them (as they’ve done it in the past). Godzilla’s atomic breath would also make short work of it from a distance.

Also the sound effects used in this scene are specifically Godzilla, Minya, and Gabara, the latter of whom are not in the episode.

I’ll see myself out.