Have you actually tried using intelligent tracking on a human in action like sports? The R still doesn't have it, sorry, so I still have to use single point and controlled focus. The R is NOT a 5D4 replacement, thus it will not work with serious sports shooters.
Again, I am not getting into a BBF methodology discussion here. Neither camp is going to convince the other....

I don’t really use the R for sports or fast action, doesn’t seem all that appropriate..... the tracking is good enough that it renders BBAF useless. I’ll use AF-off in the rare occasion the AF has trouble figuring out the subject. If I’ve got an intelligent AF system, there is little need for BBAF, tools evolve. There is very little case to be made for BBAF when using intelligent tracking systems.
Your other option is to fight the system instead of adapting to its advantages, and using the horribly placed AF-on button.

