The reasoning behind it not being allowed in normal categories - any%, aum, etc. is that a well known streamer can get more coins by people failing to find their balloon on purpose and make easy to find balloons that are easy coins.

This also means that a new runner will have a harder time because they aren't well known. I understand that assist mode is supposed to be faster - hence assist mode and amiibo's allowed, however, they are STILL random and exploitable, and should not be allowed

• Hide it is just straight out co-op between an uncontrolled number of players and should be banned outside of very specific meme categories imo
• Find it, as long as you aren't accepting any friend requests, is not co-op, but may still be too random and multiplayer-heavy for most SMO categories including likely Assists
• Luigi's tutorial is entirely singleplayer. However, it still requires an internet connection and may eventually be removed, causing it a risk to eventually get removed, which currently kills its popularity for all current coin grinding categories, and potentially also for Assists