Technically speaking, none of psychology is "scientifically valid" because it relies on consensus-based reasoning.
And by that very same token, all the criticisms of the Oedipus complex especially within a psychological context would be just as "invalid." The Oedipal Complex is ike the concept of love; love by definition wouldn't be scientifically valid either, but for those of us fortunate to have experienced it, we can identify it, and we can describe it. The Oedipus Complex like most of our experiences is a qualitative, not quantitative, anecdote.
There's a bit of contradiction in your stating this Abduxuel, because the "aberrant" behavior you seem to readily identify is rooted in identical premises which criticisms of the Oedipus Complex would, as you put, label "invalid."
I always thought Freud's Oedipus complex—part of his theory of infantile sexuality—was flaky, not least because in the Greek myth he referenced, Oedipus had absolutely no idea that Laius was his father when he killed him, nor that Laius's widow, Jocasta—whom he subsequently married and fathered children with—was his mother: the very opposite of the relationships in modern nuclear families. In the myth, as I'm sure you already know, when the truth eventually came out, Jocasta hanged herself in shame for what she had done, and her son Oedipus, overwhelmed by guilt and revulsion, blinded himself with her brooches and went into exile.
(While I wouldn't mind seeing Oedipus' fate visited on Daniel I would prefer a much better one for Lana than Jocasta.)
The truth is much simpler: Daniel is a sex-obsessed teenager who wants to have as much sex as possible with the sexiest and most gorgeous women he has seen, or almost certainly will ever see, who happens to be his mother. He is a completely unprincipled young man bereft of a single scrap of honesty, honour, higher nature or shame who is prepared to do anything, literally anything, to get his way including getting his mother drunk, manipulating her while she is vulnerable, assaulting repeatedly without her consent, and even drugging his own father to maintain access to her. I can't remember seeing Daniel do a single selfless thing for Lana, a person he has put in jeopardy multiple times because if the incestuous relationship he has with her were made public, and they ended up prosecuted, in many countries around the world Lana would be sentenced to a long custodial prison sentence and the pair forbidden from seeing each other: Daniel of course, being a young adult, would be treated more leniently and probably escape jail.
The Daniel character isn’t doing what he does because he has to, or because he’s driven to it, helpless in the grip of some psychological imperative—he’s doing it because he wants to fuck his sweet, loving, and beautiful mother for the pleasure that fucking her gives him. The little creep revels in the power he has over Lana, dominating and bending her to his will, and he’s a big enough piece of shit to keep doing so indefinitely or at least as long as he can.
That's ID in a nutshell and, my friend, is a pity because it could have been so much more.