This just shows how little you understand scientific research. Research is not about 'judgement' or opinions - it's about trials and research, peer reviewed.
This much I understand - a lot of common sense has been sacrificed on the altar of 'scientific research' over the years.
Do you also believe the world is flat because you've not been into space?
No, I don't, but that must be because:
i) our family couldn't afford a television till I was 13 (yay!)
ii) I ended up getting a degree from a Russell Group University (yay!)
so that proves my intellectual credentials!
I feel that both of the above must also go a long way towards proving that I am a good mother, despite letting my children watch gazillion hours of TV when they were young. (I often watched with them - making up for lost time!) 
He plays on the kitchen floor while I cook
Ooh, I'd be careful there, ethel. There's bound to be someone along to tell you about the research on accidents involving young children in the kitchen. Probably safer to watch TV. 