I too started reading the Weekly Speedway Star and Monthly Speedway Post in 1964.
I agree with you 100% about the standards of the English Language falling. The Writers you mention were, all of them, top Journalists in their field. Sadly these days it seems that anyone can pen an Article. The Speedway Star is not alone in this either. The daily newspapers are very poor in this regard too.
The BBC use of standard English seems to have gone out of the window too.
.............................. and they call this - progress.