All of that is true.
However, having worked in child protection and on some very serious cases of abuse, while it is very rare that a child abuser only abuses one child, it is not unheard of.
I too, as other posters, found Dylan's testimony credible and reliable, backed up by child psychologists and social workers.
Allen was obsessed with Dylan and his boundaries became incredibly skewered.
Let me be clear, I actually find Mia completely unhinged - I've mentioned this in the thread. I also think Allen is a genius.
But this is about Dylan - not Mia.