Make doesn’t have any builtin —help for the list of user defined targets, and has a slightly wonky bespoke syntax of it’s own. So it’s quite natural to look for something that has those properties.
Taskfile brings nothing to the table. It cannot compete with existing automation tools. It doesn't even promise to be better than existing automation tools...
I mean, give me at least some reason to believe it could be better than what I already have... to me it looks like the people who wrote it simply never saw what's already there. Kind of like a university project where students write a simplistic compiler for a subset of C language... It's nice that they tried their hand, but they have a long way before they actually produce something useful.