Simply put? It's mainly because it was one of the first and most widely popular animated series created and produced by an independent team online - helped by the fact that they have a crew that's able to adapt to an online work environment previously not ventured, as opposed to an in-studio show, made specifically for a show that's meant to be streamed instead of televised - and serves as a huge win for the indie animation industry, even despite the people working on it being less than savory online personalities.
You
could point to other pilots that got picked up like Final Space/Breadwinners/Smiling Friends as better examples of that, but the difference with pilots like that is that, respectively:
A.) They usually were relative unknowns and were picked up primarily based on the person that worked on it (who up until that point had only mainly worked on live action skits) and the vague interesting setup that never got expounded upon until an actual writing staff came on to help them.
B.) Were reviled upon release, are still considered as low points for the channels that picked those series up, and was made completely as a joke but was picked up because the network didn't understand how translating Internet properties to TV would work out.
Or C.) Had been completely dropped on everyone without notice with no chance to properly react to it until after it only aired once and then never again.
You could also point to The Cartoonstitute, What A Cartoon!, or Oh Yeah! Cartoons as a similar sort of way pilots got picked up, or the myriad of other shows created as pilots that just got passed over (i.e. Harpy Gee), but not only do things like that happen rarely these days, but most of those people were either working under the tutelage of former show staffs or already had previous connections within the industry. Whereas this one was made with completely fresh talent, and got picked up solely because the amount of hype and begging for it to become a show simply couldn't be ignored.
I understand that this sounds like I'm jerking Vivzie off here, but I'm not gonna sit here and pretend that that's not a neat accomplishment that could help lower the barrier of entry to other independent creators in the future. Albeit this more a case of them doing everything right, at the right place, at the right time (especially in the midst of corona, for reasons
@Chilson has already said) where others had failed previously, and promoting the show really well. And that's ALSO assuming this goes well to begin with. This could just as easily be a fluke, but time will tell.
A24 being attached to this gives me a lot of hope, though, that this will be good.
