Ok, Marvel was clearly trying to get an X-men animated series going. Aside from Firestar and Iceman, two mutants, several Spider-Friends episodes had mutants as guest stars and or camoes.
Their efforts would eventually pay off, with a decent 1989 pilot and a much better 1990s X-men animated series. Yet, back in the 1980s this was all that we had and it was pretty good. Season 2 of Spider-Friends was short lived but had some of the best animation and serious-action packed stories that were possible. The problem was that American network television was much more prohibitive about what such a 'childrens' show could do. This is why Wolverine is quickly and rather oddly defeated by the Juggernaunt. His claws were just to violent. Compare fight sequences from the 1990s X-men and Spider-Man to this 1980s series and you will get a sense of how restrictive things were.