One interesting thing I noticed (and which I believe is very telling) is that there are more comments on this website about Sabre than about its competitors. (The last entries for Amadeus and Travelport were in 2020). Is it because Sabre employees care more for Sabre or is it because they're more afraid?
My theory is that it's a bit of both - people like working for Sabre but the constant binge and purge over the years have given them some form of PTSD. It's like living with an abusive partner - we love them but we don't feel secure with them.
I know some people will disagree or have other takes. Please leave your comments - I genuinely want to know what you guys think.