Don't get me wrong I don't buy in to any of this, but while people, like say the last POTUS, say publicly that they believe in god, talk to god and are guided on policy by god, and that's seen as a plus point to a lot of voters, then I fail to see why astrology gets put down as some thing less credible. If anything, astrology is a bit less dangerous, since its little more than empty cold reading, etc.
In the end, a lot of decisions end up being take on the flip of a coin. Its this just an over complicated coin toss?