Purpose of <G5>

Rule <G5> states that
"Once a Team has placed its Robot on the field, its position cannot be readjusted prior to the Match.
If a Team violates this rule, the opposing Alliance will be given the opportunity to reposition their Robots promptly. "

Any Idea what the purpose of this rule is?

One alliance places their robots, and then the other does. So the alliance placing second can place based on where they see the first alliance placing their robots. If you let the first one reposition their robots, then you’ve destroyed the order unless you let the second alliance also reposition theirs.

It shouldn’t matter as much this coming year, though, since that autonomous line will keep the robots from interacting nearly as much as they could during autonomous this past year.