Yeah, as I said, the biggest advantage is that this has a little better DE integration than Firefox, and it's more lightweight than opening a full fledged web browser just to open the web service.
But, as I've also said, it offers a flatpack that allows for easy installation in Solus, so although the inclusion of the package would be nice, it's not absolutely necessary, and I see no problems in it being denied.
My current system is a bit temporary, when I get a fixed rig where it's worth to take the time to set up a dev environment (which may happen in 2-3 months, depending on money issues), I may maintain the package myself, if that's allowed.