Your article indicates that a splitter is fixed in relation to the table and must be removed for through cuts.
I've had a Shark Guard and riving knife for the last 8 years or so. Highly recommended. The riving knife is always in use (except for dado cuts), but I do have to take off the guard when ripping narrow pieces. You need room to see and get a push stick in - nothing is perfect. But for ripping wider boards and crosscuts it's excellent, both in terms of safety as well as dust control.I do not have & don't want a blade guard. I find the Shark Guard very interesting and it may change my mind.