100% agree. I see this all over - you have a better bet of paying attention to the news and doing your own research (assuming it's something like this). These companies are often contracted out to other companies who are lowest bidding the work and don't have any vested interest in the parent company.
A quick search engine search tells me that it looks like Apple contracts out portions of its tech support. So there you go.
I avoid customer support like the plague unless it's something I can't do without their help.
I've had much better luck in the Apple Stores - especially recently - with my 17 Pro - the Genius assigned to help us had been there awhile and had an excellent grasp on everything Apple.