What about eastern religions like Buddhism? They don't pray to anyone in particular, though they might venerate particularly enlightened humans or practice ancestor worship. Not SMA?
SMA is defined as distinctly European style, and does not include things like eastern philosophical religions, or other non-European models. That's why the Blood Cult never got started on Dwilight. Tom thought it was a good idea, and would even fit the BattleMaster mold in general, but that it was inappropriate for Dwilight as it did not fit his vision of SMA.
Because I would actually say that SA has distinctly eastern influences - the Stars are not exactly gods (as only rarely are they described as having a conscious will), they are simply inherently divine, much like natural objects or places can be considered to have divine aspects in Shinto. Much of what SA teaches about their influence on the lives of men and the need to balance their influences within oneself is evocative of aspects of Buddhism and Taoism both.
Sure. But Sanguis Astroism does have a set of "divine things/beings" to which the adherents pray, and from which they seek guidance.