I’m more bothered by how he kneecapped every other Prequel villain. Darth Maul could’ve been the next Darth Vader but he gets killed in the first movie.
Unless you watch the Clone Wars or Solo.
But yeah, I would agree with that. Darth Maul should have been around for the whole prequel trilogy. Then an idea would be to have Obi Wan try to seek revenge on him for killing Qui Gon, which distracts him from training Anakin or something like that.
Or if you aren’t gonna do that, introduce Dooku in The Phantom Menace as a member of the Jedi Council and show him defecting after Qui Gon dies. It seems weird just introducing him out of nowhere in the next one.