I don't see any way to enforce this at all. It's impossible for sl to track or expose that.
All this will do is disallow the public from using battle helpers. Those at the top will keep on using their private solutions and dominate everything.
I understand where this comes from, but i don't think that this is thought through at all.
So a definite NO from my side, cause this doesn't promote player equality. It does the opposite
RE: SPS Governance Proposal: Update Terms Of Service To Prohibit Use Of Battle Helpers in Modern Ranked, Tourneys, and Brawls