And again, the Dan Slott run this is patterned after is pretty much exactly like this show. So if there's clearly room in the Marvel comics universe for this kind of thing, why wouldn't there be in the Marvel cinematic universe?
The "expectations" you're talking about are unreasonable and demonstrate a deep lack of understanding of Marvel and its content. Because Dan Slott's run is by no means the only kind of silly run. We could talk about NextWave: Agents of H.A.T.E, which is amazing and I hope it gets adapted. There's superheroics but it's also more Suicide-Squad-y than Suicide Squad. Or basically anything with Squirrel Girl. Howard the Duck is a long-time character. There's a deep run of silly within Marvel, and plenty of stuff that takes whatever "expectations" you're talking about and flagrantly ignores them.