You are assuming he supports a team or supported a team that is now defunct. As for the pensioner comment that is because he thinks most people who live in Dorset are pensioners but as you say a lot of speedway fans are on the older side.
Yes never the same after that, I asked him about it a couple of seasons ago and he thought at the time walking again might be difficult let alone riding again. One of those occasions where the whole crowd goes quiet.
If he was getting one or two points I doubt he would be sacked, he was getting zero unless a breakdown happened and yes Foord got zero in his first meeting but he looked more likely to score and one or two points in a tight meeting may make all the difference. I think if you have a chance to improve the team you do it every time.