To my mind - it certainly doesn't help Speedway.
It should help, but it seems certain people in authority in Speedway seem happy just to see the Sport on Television and take the money handed over by the Television Companies. The presence of Speedway on the Television should be augmented by a massive push to actually PROMOTE the Sport. Television Advertising could be a start - expensive - yes - but you have to speculate to accumulate. I understand from friends and from some other Posters on this Forum that Social Media could be used much more advantageously and effectively than it is now.
A lot of folk will probably stay at home to watch the Meeting if it is on the Television thus depriving Tracks of valuable income. How that is offset against the Television money - I wouldn't know.
Apart from the folk staying away and watching it on Television, as I said earlier - I can't see how being on the Television hinders Speedway in any way.