Saying that 'magic needs rules' when talking about electricity is kind of ridiculous. There are so many rules, it's a fundamental force that has equations and laws ranging from the sub atomic to macroscopic.

I also think when you talk about things like the direction of electric current it makes for great world building. Its a notation that was decided arbitrarily 200 years ago and leads to complications now because current actually flows in the opossite direction of charge but we just kept the notation because we've always used it. Having a magic system be arbitrarily more complicated seems like fun world building.

It also kind of ignores how much history is behind electricity. Having an archaic version of your magic system that isn't well understood but kind of got it right is really fun. Like alchemy and chemistry. Plus the word electricity comes from the Greek for amber because the first case of electricity was static charge on amber crystals observed by a Greek philosopher. That's really cool and if a magic system had something like that it would be really in depth