Dekra Tokai

I took my for RWC to Tokai on Friday. Nissan Almera 2020 model. Car failed,3 issues. Clip on left taillight,left front tyre and a small crack on windscreen, about 3mm, barely visible on a pic. I had to point it out with my finger on picture for the insurance. So went to stitch, repair it , replaced tyre and fixed light. Went back today Tuesday again still failed. My issue is this. I asked the guy how big does the crack have to be,was told any crack. Then I said but it's barely visible,you have to really look for it and it doesn't impare your vision in anyway. Again,he was nitpicking and told me it does if the sun hits it. According South African traffic laws the crack can't exceed 10mm if it's in line of sight,which my one is but my crack is 3 mm,and barely visible,yet it failed. My question is this. Must your cars be new to pass or pay extra to pass. If it's so difficult to get a good condition car through roadworthy the legal way,by the book and trying to do it the right way. Do you really blame people for going back door?