It doesn't have to be in the pool. And hopefully the first dive on the course was not to 130 ft (which is what I thought I saw at the start of the video. I've done assessments during equipment assembly, gear up, and swim out/descent to 60 ft. before doing any skills. I've adjusted the dive plan based on the assessment. And in this case, since not all dives for this specialty can be done in one day, to do a "fun dive" first to get acquainted with the site or with each other as divers (i.e. an assessment.) Do a fun dive, deep dive 1, & deep dive 2 on Day 1 then deep dive 3 & 4 the next day.
It's something instructor is supposed to do but it doesn't have to be pool or a specific "checkout" dive.