A different take

[GA Umpire]

While I know the rule specifically identifies base coaches, it seems it was applied like this:

Any non-players/non-live runners cannot assist the runner. If they physically assist the runner, then that runner is out.

It's too bad things like this don't get published for all to see and understand why it was called. It would help explain the rule or eliminate any confusion for non-Pro Ball umpires. Even if it was a mistake like this may be, we would have a better idea of what we are arguing for/against.

Given the rules as written and no interp to support the out, I don't have any call on this play.