I’d say that contradicts more than just the prequels.
Han’s appearance is entirely metaphor for Ben’s emotional journey in that moment. It’s him finally processing what he’s done. Han isn’t literally standing there and shouldn’t be portrayed as such.
My first impression of that whole sequence was that it simply was just Ben’s memory of Han, all happening inside his head, but represented in person for us “outside” viewers.
But… If it’s possible to eliminate Rey stabbing and healing Kylo, then the sequence can be tightened up to: Leia lays down to contact Ben, As Kylo he gets distracted by Leia’s call for just a moment allowing Rey to run away. Shortly after, cut back to full scene of Ben on the ledge with Han. Immediately follow that up with Leia fading away.
In the film, this sequence is broken up by a few other sequences which takes away from the clarity of what is happening and why. By tightening it up (of which there may be many hurdles to doing cleanly) it would give that moment more weight by emphasizing that Leia used the rest of her life force to grant Ben this moment with his father. It also gives Leia a parallel moment to what Luke had in TLJ, dying by overexertion of using the force to perform an extremely powerful act.
I’ve seen TROS twice, but I had this idea after seeing it the second time, so I can’t recall whether any other sequencing or necessary dialogue cues would prevent this.