Yes i found the suicide bomb vest in poor taste and OCC. It becomes even more malicious when you realise that the issue before the jason fight Alfred pulls the old 'He gets it from your side of the family' with Damian.
"You are becoming like your father. No not your father... You are becoming like your Grandfather. Ra's Al Ghul"
Excusing his Jewish side of the family [Glass is Jewish] This Damian is nothing but the Al Ghuls'
That REALLY bothered me. When viewed along with the HUGE focus on Damian's Arabic heritage where Damian says that he's never felt at home in Gotham.
The Arabian restaurant [or whatever the place he was enjoy his traditional Ox Blood was in] being the only place he feels at home.
It seems intentional.
Glass really really wanted us to Know Damian was mixed. More than that he wanted us to know that Damian himself viewed himself as Arabic.