Sorry, but I refuse to turn off my ad blocker for Forbes. That website can suck it.
I can see by the URL, though, that it's the DAL/AA wing strike.
I just don't know what you're getting at here. Yeah, it sucks. Yeah, it can, and has, happened to other airlines.
Are you angry at Delta because you're at Endeavor and that's why your title is "poor Delta"?
Are you genuinely sad for them?