Just because you’re flying with a big airline, doesn’t mean the pilots are experienced. Regional airline pilot here. You may have bought a ticket on Delta, United, or American, but chances are you’ll be flying on a subcontractor. That means the pilots have a fraction of the experience, training, and pay of the big mainline carrier. Also, I don’t get paid enough to care if you make your connection. Most of the time we fly slower than normal to make more money. The only time we fly fast is if ATC tells us to or if it’s the go home leg.