I know why those greebles are there, and I think the ramp joining bits are fine. It's the peg that is in the middle of the ramp and the greebles that make the ramp all not-smooth that bother me. And yes, I know the peg is there to make a shield for Optimus, but TBH, they should've just made the ramp so it can be opened without having to crack the trailer open, allowed it to join up with the other bases and not bothered with the shield option as it just looks silly.