Are some things a bit on the nose? Yes, but don't forget, it's the CW, not HBO. I don't get the complaints about unsubtle/extensive references to characters in this show. Just because you noticed it and it wasn't the most subtle thing ever written doesn't mean it's sledgehammer dialogue, either.
Case in point: Selina slinking around, being shown feeding cats, stealing milk, stealing other things, being able to see in the dark, etc...these are not just references to her future as Catwoman.
These are character traits that they are introducing so they can develop the character in a particular direction.
It's like being told a character likes baseball during a sitcom, except that for instance, here, Selina likes stray cats. Which makes sense, both literally and metaphorically. She herself is a bit of a cast-off, a street dweller, and a loner. It works on more levels than "OBVIOUS CATWOMAN REFERENCE!".
I'm also not seeing this "camp" some of you are speaking of.
I suspect that some of you do not know what camp is.
This show is not making fun of itself. Slightly over the top mannerisms and larger than life behavior is not necessarily "camp". Nods and elements of characters being revealed is also not "camp".
Nevermind that loving amounts of camp has long been a staple of the Batman mythology. Even in the more serious comics and movies.