Hi @noisneil - that does indeed work. However, when I suggested this in a different thread, @peternlewis cautioned me against using it. (Also there is a yellow warning triangle in the top right of your Action and if you click on it, it also warns you).
Normally, using open with "Finder" rather than "Default Application" works fine with no warning triangle in that same action. But as of macOS 12.3 there is an AppleScript bug that breaks that (hopefully Apple will fix).