Re: How on earth
"At the the high end, DSLRs and the like have gained faster burst speeds, 4K video, and are generally more data intensive. This means that get best performance, CompactFlash or XQD cards must be used."
Really don't agree with the conclusion, here. SanDisk's Extreme Pro SD card writes at 250MB/s, (according to SanDisk) which is faster than my Nikon DSLR can dump its buffer at. Their CFast cards are faster, but it's immaterial when it's faster than the camera.
Personally, I use my DSLR mostly for macro and landscapes (due to image quality and lens choice), with the odd bit of wildlife (in which case, 5fps) ... despite the fact it's generating 24MP/70MB raw files, any SD card will do.