The Orville’s first season was a bit of a mess. It tried to be a comedy, but it also had some very serious moments. The second season was much better, as it focused more on the serious stories. However, the show still needs to improve its dialogue. Which I really like in Star Trek.
As early as episode 3 they were trying to do serious storylines, and as early as episode 4 they were succeeding. I think it was always intended to be real Trek with the serial numbers filed off but sold to Fox and consequently advertised as a parody.
One thing I really like about the depiction of the Kaylon is that, as far as I remember, nobody ever suggests that they were wrong to kill their builders, only to generalize their hatred of those builders to all organics.
I kind of feel like that’s how Seth had to get it past Fox and onto TV to begin with. He’s not known for making sci-fi, he’s known for making comedies.