I only know this from studying to become an accreditated instructor but there are severe legal raminifications if anyone suffers a head injury in a Martial Arts School. I disagree with it as I prefer head shots and if I am alone with my Sensei he allows me to put on headgear and we spar with head shots. The same goes for groin shots. The protective equipment worn does not 100% prevent injury so head and groin shots are not allowed. It is that bad now that when knife defence is practiced a dojo is not covered legally if the students to not wear eye protection.
Have you asked for feedback Gok? From what I've seen in big tournaments there usually isn't time on the spot to explain to the loser what went wrong but if you asked an instructor/judge later they will be more then happy to explain.
I think you have to let go of your love of traditional martial arts too. The rise in popularity in MMA has caused a rather quick evolution in martial arts and society has changed so much that there is no real practical need for traditional martial arts. This again goes back to what I've learnt doing my accreditation. Using traditional martial arts in self defence can often leave you on the wrong side of the law. We did numourous case studies where the mugger took the victim to court because of the harm done to them because the victim was a martial artist. There is a fine line between self defence and assault. That line becomes even finer when you are a practicing martial artist and can get quite blurred easily for a judge. Tha is why most schools that teach self defence will tell you physical defence is the last resort! Traditonal Martial Arts are great but they are just not practical in todays world and I seriously think you need to understand that.