The best thing you can do is learn to shoot both kinds; experiment and play around and see what YOU like. If you want to be published then do listen to feedback and study the market; but understand that different viewers want different things and that just because one pro does it one way doesn't mean everyone has to. By learning the core skills you are then able to choose yourself.
I'd also say that whilst the linked pro is getting sharp bikes in static motion they are making heavy use of either jumps (where the motion is slower anyway) or where the bike is kicking up a huge storm of dust behind it which gives the sense of motion.
Noise is another aspect and learning to work at sports is part and parcel of learning to deal with high ISO noise. It's a nightmare; but learnable! Learn to expose to the right as much as you can (look that theory up as well as how to read histograms if you're not doing so already); learn what your setting limits are (ergo how wide you can go on aperture - how slow in shutter speed (and how fast if you want blur). Then you can use that to guide how high you need to take your ISO.
Don't fear the ISO either; if you need it higher take it higher. A clean well exposed photo will have less noise than one you have to bump up in editing; even if the ISO is lower. Furthermore accept that sometimes its going to be dark and your going to be maxed out on your settings and thus having very noisy shot to work with.
I can't give advice on angles (not shot this kind of event before); but study others work. Look at how they compose - the angles they go for - get an idea of the positions they are shooting from.
