To be a bit more clear
The new version of Skript from GitHub does not allow bypassing limitations set by Aternos.
If you do not trust it:
1) There is a documentation for Skript. you can find it at
https://skriptlang.github.io/Skript/events.html#move_on
If there is anything that could possibly be out of the scope of manipulating simple Minecraft mechanics please let me know.
2) Look at other server hosters like minehut who have been supporting it for years. If it was really that intrusive why do they have it.
3) You are claiming that a bug update now allows for a user to go from adding custom features, to harming a server hoster. Let me make that even more clear. A plugin has been updated from its alpha versions to make it more usable and now its all of a sudden intrusive. Please tell me where. That's like a server hoster saying we can't provide minecraft above version 1.0 alpha because it could be intrusive.
4) The hoster should not care if we hack our own server. They should only be worried if it could intrude into other parts of the server. A plugin that changes minecraft mechanics does not have that scope
5)If Skript is your definition of bypassing limitations, then why are plugins with much higher danger even included.
6) If Skript's update is dangerious why are all the other plugins automatically updated
I'm sorry for repeating points but I am just making it clear why what you are repeating doesn't make sense to me.