It seems to me that a one-time positive experience with one person hardly influences attitudes formed over a far longer period - and I don't even need to take i

It seems to me that a one-time positive experience with one person hardly influences attitudes formed over a far longer period - and I don't even need to take into account yet that for evolutionary reasons negative signals have a much stronger influence than positive ones. So to me all this shows is that they were aware of the problem - I don't see that this shows that they did anything significant to address it.