Not based in what I read, no. As you say, it seems counter-intuitive. Our system is predicated on the infallibility of juries, through the prism of the requisite standard of proof; although if truth be told, that predication is clearly a lie. Juries are bound to make mistakes from time to time - to suggest otherwise is simply absurd.
My personal view is that more mistakes (both ways) occur in trials of historic sexual abuse than any other. This is because the only meaningful evidence is frequently the oral testimony of the accuser and the accused, which is usually evaluated simply on their respective performances - which some people are simply better at than others, irrespective of whether they are telling the truth or not.
it’s a difficult one: I think juries’ instincts are usually right; I believe it’s the ‘least worst’ system available; and of course we should prosecute people accused of historical sexual offences (with certain robust caveats) - but the notion that juries never get things wrong, even with all the available evidence being before them, doesn’t stand up to any objective scrutiny, or the lessons of history.