As far as I can see, people are giving their opinions of the facts (or not) as reported in the newspapers. Which is fair enough.
According to the papers, the man himself hasn't disputed the fact that he was with his mistress, and the wife knew nothing about it.
People can speculate about how they might be feeling or about what might have happened in the run up to the incident, and I also think that's fair enough. There's no law against speculation. I also feel it cuts both ways. At first glance, I want to think "hmmmm....man drives 40 miles away with his kids which just so happens to be 9 miles away from where this other woman lived - how bloody sneaky can you get, bet he told his wife he was taking them for a nice trip out to the seaside blah blah blah"
But, I also then speculate, well, how do we know that they weren't going through terrible marital difficulties, the children were close to this other woman anyway, and the 2 year old had said "Can we go to see X (whatever her name is)?" And her mum said "Well, DH, you take the kids out, I'll stay here with DS". And he could then have met up with this woman and they might boith have been having trouble with their marriages and just had a friendly hug to console each other and THAT'S when the buggy rolled into the sea.
We don't know. Somehow I can't think they are going to broadcast to all and sundry the finer details, so we might never find out.
But I think it's fair enough for people to post and say "Well, he is a bastard IF he was sneaking around thinking of his dick, USING his children as an excuse to travel far enough away from home so as to not get seen by anyone, which is the same reason they went to that dangerous stretch where people MIGHT not have taken a buggy ordinarily".
If people are posting and saying as fact "He did this shitty thing, or that shitty thing so therefore he is a bastard", then it's a bit much, as we only know what we've heard in the press.
The thing that stuck out in my mind was how one of the newspapers said something along the lines of "the dad needed treatment for shock upon hearing the child had later died. The mistress didn't need any treatment." It kind of implied that she was a heartless bitch and didn't feel bad for what had happened.