I don't really get the point of the article, it's written like slowly run races are some exception we rarely see. The opposite is the truth. Majority of races tend to be horses show speed early, find a position then settle till the sprint home.

“Take little notice of race results where the overall time is slow” could only be good advice on the assumption the majority of races aren't slowly run. I'd say that's incorrect. You don't ignore it, you just have to analyse further.

And all form is relative. Any horse can run any distance, carry any weight, handle any condition against the right [inferior] competition.