I think we just caught a glimpse into Bay's logic.
"Whats that you say? It doesn't look like a a robot? Fine we'll just add a minigun to it. The fans won't know the difference. If they do we'll just zoom the camera in and cover it in explosions for the two minutes it'll be on screen. Now leave me I must focus on the wonder retards while I jack it to exsplosions!"
My name is Death and the end is near.
^ The way the live action Transformers movies should've been.
R.I.P. mom, I love you and forever miss you