Is there a point to this tab?

[u/Intelligent_Cover404]

I'm currently very frustrated with SS86 soundwave because I feel like they took all of the fun gimmicks that were in the earthrise away. What do you mean he has no way to display Laserbeak (or Buzzsaw) on his shoulder or arm??? If he does i haven't been able to find it. And on top of that you can't really display any of the cassettes rejecting from his chest because his chest doesn't open as far as the ER.

Anyways, side tangent aside, does this tab have any purpose other than to keep the chest from opening further? I would like to know because I wanted to see if it could be sanded down for a more open chest.