It's all speculation, but based on evidence. Madley and PGMOL have remained silent, so we don't have their official view to consider.What would be your explanation for how Madley came to the conclusion that it wasn’t a penalty?
But yes, I do think that VAR officials and match officials seem to have a bias against us. Sometimes that is understandable - like if we are playing a lower league team in a cup, but that isn't specifically against City.
On other occasions, it might be just giving the benefit of the doubt to the lower placed team. That is understandable too.
But on this occasion, Moss has already set his threshold for what constitutes a penalty, by awarding one for the incident against Laporte. With that being the context, there is absolutely no reason not to at least recommend that Moss should look at the pitchside monitor. Madley could have done that and absolved himself of blame. He didn't, so it is all on him as far as I'm concerned.
Did Madley think it was a penalty but not enough of an error for him to overturn? We don't know.
Did Madley think it wasn't a penalty at all? We don't know.
Is Madley, who is fairly inexperienced, being influenced by someone in higher authority to not give City decisions? We don't know, but my money would be on this one.