I never took this or Lost In Space too seriously. Even as a kid. Half of the fun comes from the absurd and silly stuff. However, LIS, in large part, was meant to be funny. ST, not so much.
I think the very first episode of “Lost in Space” was actually intended to be serious. For some reason they changed it to a bit of camp.
I liked it but also wonder how it would have been if done more seriously.
Of course the movie was done seriously but was typically totally PC. There were some hot girls in it tho.