The framerate doesn't bother me when it comes to general body movements, especially with the mask on, but seeing his face stutter like a cheap web animation is definitely weird.
It's a normal frame rate for 2D or stop-motion animation -- shooting "on twos," changing the image every second frame for 12 fps, or "on threes" for 8 fps, because it's less time-consuming and expensive than trying to animate every single frame, and human persistence of vision is about 1/8 of a second so 8fps is enough to create the illusion of motion. The thing is, 3D computer animation is usually animated "on ones," giving a much smoother and more naturalistic motion. So seeing 3D animation done at a lower frame rate isn't something we're used to.
As it happened, back in the '90s when animated shows and movies were starting to integrate 3D-animated vehicles and backgrounds the like into cartoons with 2D-animated characters, I found the CG items discordant because their animation was too smooth. I wished they would do them on twos like the hand-drawn characters/elements.
That, and the huge Tangled/Frozen-style eyes. I guess CG animation is too lifelike to use realistic facial dimensions without an Uncanny Valley effect?
No, it's an artistic choice. I mean, if you want realistic-looking human characters, you can just do live action. The whole point of doing a film in animation is to do something stylized and caricatured.
Obvious question: are we nearing the point of "too many Spider-Men"?
No more than we have "too many Flashes" (Barry, Wally, Bart, Jesse, Thawne, etc.) or "too many Green Lanterns." It's been a tradition for superheroes to spawn large families of spinoff characters ever since Otto Binder created the Marvel Family for Captain Marvel (the character now called Shazam) in the early 1940s -- something Binder then went on to do for Superman in the '50s. And how many Robins, Batgirls, Batwomen, and other Batman Family members have there been by now?
Indeed, Spider-Man is a lot like Batman in a certain way. They're both characters who nominally operate as loners, but who, due to their popularity with audiences, have been systematically teamed up and crossed over and spun off so many times that they've become the most gregarious heroes in their respective universes. (See also Wolverine. Why is it always the loners?)
