They were set-up episodes from my perspective (this is a superhero mystery after all). That's why I think had they all been released at once you wouldn't feel the same way because sure, you'd have three sitcom episodes to watch the first week, but week two would've been the introduction of SWORD. The problem was after the first two sitcom episodes, we waited a week and got another straight sitcom episode, and then had to wait another week before we got out of the sitcom setting.
Now that the show is a mesh of sitcom and SWORD, it has a lot more intrigue to it imo and feels more like something from the MCU.