A bank isn't creating money in the same way the Fed does. Yes they can increase the "money supply," which for whatever academic reason doesn't include the liabilities, but not the money in circulation. And they can only physically lend out the amount that's deposited, or legally more like 90%, and they're hosed if everyone wants their money back.
Only the Fed can create money out of nowhere. They can create endless dollars and owe nothing, diluting the currency permanently. Inflation and other metrics keep them in check. The common sense is actually right, not the overly technical explanation of lending that somehow concludes that the Fed isn't special.
> in theory it’s eventually repaid
It doesn't have to be, and it hasn't been. M2 has generally just gone up.