Direct quote from the article:
“Your main work must be proportional to your supplemental work. In the case of BBB, the supplemental work is hard (as in a lot of volume is done with a “big” movement.) Because of this, the main work (main sets of the program) must be done in a limited manner”
Given that the guidelines are generally that you should be able to do 5 solid reps with 100% of your TM, I don’t imagine 95% should pose many problems.