I personally have not had a worry with connections on Etihad but unlike eddibabyyeah's experience at CDG Etihad would probably fast track you through the security in the unlikely even you are late
The most important thing is to have the one ticket and not two separate tickets and you will be well looked after. The real problems are when the airport has been closed for some reason like fog or security scares when there are thousands of people rather than a small number off the one plane - and then it does not matter who you are flying with