Irreconcilable Original Sin plot holes

I generally liked Original Sin quite a bit, even if it came off a little fan film-y. There’s been some discussion about inconsistencies with the original show (Vogel’s absence, lack of Matthews, etc) but I feel like those can be explained away for the most part. Two, though, can’t in my opinion:

• Captain Spencer’s body: Would the police not have discovered Spencer’s body along with the other underwater remains in the OG series season 2? I guess the explanation could be that he was too decomposed, or he simply wasn’t one of the bodies retrieved. Those explanations aren’t really satisfying to me though.

• Killer within Miami Metro: It’s absurd to me that nobody in Miami Metro mentioned Spencer, who Original Sin showed was revealed as his son’s kidnapper, when Doakes and later Dexter were suspected of being killers. Two cops being murderers within 15 years would have absolutely come up.