I wish it was a TUI. Windows is a plague I try to stay away from as much as possible, and it already gives me headaches to setup WSL and manage them over ssh. Some things you just can't do w/o remote desktop... And sometimes WSL crashes and there's literally no way to recover except to restart the whole machine.
The only reason I use Windows is because Nvidia drivers are easier to setup. But once I'm inside my Fedora WSL, that feels like home, not the Windows host.
Are you sshing into the wsl instances or he windows host? Pretty much all my interactions with wsl is using the wsl cli. Other than the very initial step of enabling wsl, mostly because I never memorized the powershell enable command.
I think the UI is pretty slick but agree having a TUI option as well would be awesome. Everything in wsl management (import, export, register, compact, etc) can be done with shell commands I believe so a tiny performant TUI might be a straight forward thing for op to add in the future though.