Sounds like a good idea. My original familiarity with the Marvel universe came from the 90s X-Men and Spider-Man cartoons (with a handful of Fantastic Four, Silver Surfer, and Iron Man episodes I saw). Thor was completely unfamiliar until the movies and I hadn't even heard of Guardians of the Galaxy until it was announced. Hopefully, it'll be a good series that does justice to that comic series and can bring in a new audience. I love Spider-Man, but "yet another Spider-Man cartoon" is apt.
Of course, it's slightly different in that the comic seems to be a spinoff of the movie. I wonder if it's part of the MCU or not.