So it seems, nothing has changed in this matter.
This year I was denied boarding on a AUH-SIN flight. I received a 200 usd voucher. Since I live in Poland and there is no Etihad office in the country, I have probably no opportunity to use the voucher. The Facebook Etihad team is still useless and the phone customer service told me to... go to Abu Dhabi with my voucher LOL

I won't fly with Ethad anymore.