But his ideas weren't taken, his ideas are completely generic (a black female lead and a gay couple where one guy has a beardOh wow, he's in Kuwait.
I don't think it's right to compare this to the Alec Peters case. This isn't a Star Trek project, or a ST fan. Moreover this isn't a case of someone trying to profit off of the ST IP. He was just making his own thing a few years ago, and had it protected under copywrite. Yeah, he's trying to get money... but that's sort of the point if you feel your property was taken, right?

Sure, they both have giant tardigrades but that happens naturally when a work of fiction decides to use them because it's hard to do a character that's the size of a mosquito compared to human characters.
Looking at the specifics of the stories they don't even seem to be that similar. His is about an ancient human civilization using tardigrades to travel through space, Discovery's is more about future humans using a mycelial network with the tardigrade showing them how, they do it without it after a short time.
Both having space travelling tardigrades isn't proof of anything because it's not even an original idea he had, so he saw a Discovery channel piece about space travelling tardigrades and thought "Wow, I can use that!", so what? Tens of thousands of people probably had ideas about stories involving them the last few years.
You cannot use an idea that's literally all over the media and then act outraged of someone else does it too, this guy is a joke and I hope he's crushed by CBS.