Corroded pipes

Had 1999 clk230 Merc for test today, arrived with both dip headlamps and both front position lights not working, (they have bulb fail warnings on dash !!!!)Passed on evrything else though
lots of advisories, some borderline, but the main thing being what I would call very excessively corroded metal fuel pipes at nearside rear floor.. Advised as Dangerous as no RFR for corrosion, only for leaking, far more serious than some of the new testable items. they were so bad that I highlighted advisory, and told presenter who just said ok and drove off, with the other 15 advisories
Surely a metal fuel pipe in that condition, ready to burst/leak should be an RFR !!!!

can we get a view from VOSA re above as is not first vehicle tested with this advisory.