I wouldn't have been happy with the 50% at your morphology scan to be honest. My sonographer wouldn't tell me either way until she actually managed to see the 3 lines. No clear penis wasn't enough at 20 weeks. Took her ages, but we got there.
I am not sure what traits of both genders means???? By now the penis should be pretty obvious, how can you think it is a boy without seeing a penis? And if he couldn't see a penis or vulva then he should have said he couldn't tell? Unfortunately they don't put that stuff on the report either.

Would you be disappointed with a boy now?