Iveco stralis ebs

When presenting a three axle unit you need at least 65 percent of the vehicle plated weight ( they might abandon test if there is little weight on the front of trailer ) , the non standard brake test procedure only is used if there are NO visible defects with the brake systems so guessing as the ebs system has a fault the tester didn’t use the non standard procedure ? Also I’m guessing the reason they said about a pg9 because you had little or no effort at a wheel as that is a pg9 and stralis needs to the weight or the brake won’t operate, there is a guide for presenting vehicles for brake test online which is helpful for people unsure or inexperienced of how a vehicle should be prepared or taken for test .
Have been taking units and trailers for test for years and never take a unit without a full load on as it just causes hassle and a good run loaded cleans everything up nicely on the way to test