See this same thing happen with other stuff all the time, like a quick fix on a leaky faucet. The proper repair feels like a pain, but you only do it once.

Complain all you want about hand sanding, but it beats explaining scratched table legs to clients. Power tools just can't handle curves without leaving marks. So grab some sandpaper and get used to the slow work.

Life feels like one long outtake reel sometimes...