In the English version of the Me'am Loez on Parshat Noach (Beresheis 5:11), page 309, the following appears regarding the generation punished by dying in the Flood:
As time passed, other charlatans began to appear; they claimed that an angel or star had spoken to them and had told them to worship it.
Each one invented a different kind of worship.
Based on this Me'am Lo'ez (published in 1730 in Constantinople), we see these movements are nothing new.
The leaders of these movements either knowingly fool people or they truly believe they communicate with stars (or entities inhabiting those stars) or angels. But either way, they are charlatans...just like their counterparts in the Generation of the Flood.
(And if they truly receive communications, the communications are definitely not from stars or angels. It's either their own malfunctioning mind or they've attracted the attention of impure entities much closer to home.)
Either way, this stands as yet another indication the Generation of the Flood has reincarnated into our generation: