This announcement implies, to me, that Uber is planning to releease the game solely through Steam from this point forward. Instead of a Steam release alongside a release or download link on the Subscribe Star page, like many other game do.
If that is the case, my guess is that Uber is mainly looking to Steam in order to use their optional DRM features. Which, to me, would also explain why he hasn't just polished up and released the "small update" that was "almost" ready for deployment before they were removed from Patreon.
Since the removal from Patreon the sub bonuses have had a massive reduction in tangible benefit past the 2nd out of the 5 tiers of financial support. In fact, the $20/$30/$50 tiers all have the same benefit package. New content has been put on total hold for the foreseeable future in order to overhaul seasons 1-4 of the game (we're at 2 months just on season 1) after there was already a substantial overhaul in the past. And the developer updates, while admittedly more frequent, boil down to "still working on the Steam release
".
I've financially supported this game for 3(?) years. But man, if the last few months don't throw up more red flags than ever. I sincerely hope they don't move to only releasing the game on Steam. That will be a line in the sand for me.