FrogReaver
The most respectful and polite poster ever
If you think you could be wrong... then why not just use Circle Magic if you like the idea and then make your judgement after you use it? The only way you'll find out is by trying.
Now if you don't actually care about circle magic, then you don't need to bother with it or concern yourself on how it plays. Every single DM has parts of the game they just aren't interested in, and they make the choice not to worry about it or put it into action. Like I don't care about Encumbrance... so I don't care what the rules are or worry about whether they work, or any of that stuff. I just ignore it. Circle Magic might very well be the same thing for you.
There’s many things I know without ever having to try.