The guy in the video was just doing short breaks between sets, 44-45 seconds on the last set. Not true Rest-Pause. Some more serious BB'ers will only have a 30 seconds break between regular sets. Started and very popular in the 60's & 70's (even now). Taught and encouraged by Gironda. Pure BB'ing style workouts.
Original concept of Rest-Pause (a system I favor greatly) was a 10 to 15 second pause between each rep of a set. From 3 to 4 sets (2 minute break between) of 6 to 8 reps total. It is a very focused way to train. If you are using 200 for 8 hard reps in the bench you probably be using 215 or 220 , for those 8 (maybe easier) reps, with the 10 to 15 second (max...never more) Rest-Pause. Increase in strength and size porgresses very well with this method.
There are 3 programs I may suggest to people who want to get bigger and stronger, in a somewhat short period of time. It's 5X5's, GVT and the Rest-Pause system. Partial rack training could be thrown into the mix, but that is not for your average guy, unless they plan to train with very serious intent. Could think of at least 6 more productive gaining programs, but these 3 seems to give the most bang for the buck, for most people. All this is just my own personal view, no biggie. Good Luck.
Side Bar: old question in BB'ing is what really defines a set. Is the rest period 5,4,3,2 or 1 minute a true set break. Or 45, 30,15 or 10 seconds for short cycles of training? Guess it all depends on the individual and how it works for them. Some of the old time strong men (before drugs) had 15 or 20 minutes between lifts. These guy's were super large and super strong. Some guy's like Draper had 15 to 30 seconds breaks. And than there are pure SS's,Tri sets, Quad sets, etc with no, or very little rest, when working out certain muscle areas.