Hulu does not seem to have a good track record of keeping mid-tier comedies afloat. Last year they cancelled "Reboot" after a single season, and I thought that show had real potential.
I suppose it's not out of the realm of possibility that Hulu wouldn't be getting the "A" material, and what they get would be more cancellation prone. After all, Disney has several different TV branches that any given show could be funneled into: ABC, "Freeform", Fox, FX, Disney+, and finally Hulu. It's very possible that Hulu is getting the bottom of the barrel picks, but I thought that Reboot was quite solid, and HIMYF was OK (though certainly not great).
It really feels like Hulu is just very cancellation happy at this point.