I haven't seen this yet but it looks like a lot of fun. Despite that I have a feeling you're right. Infinity War was a 3 out of 5 at best. Kinda entertaining but not much else beyond that. Hard not to see it as weak given previous MCU high bars. Though I'd disagree that Infinity War was all that serious — it could have been more so and maintained the humour. It's biggest problem was that it had no freakin' gravity, yet was supposed to be all gravity.