I don’t know enough to say if it’s a valid theory, but I saw one commenter suggest this scenario:

• Bird strike takes out 1 engine.
• Wrong engine is shut off by the pilots by mistake (now both engines aren’t operating)
• Without engine power, hydraulic systems stop working properly
• Pilots realize their mistake too late while trying to do a go around, try to land instead farther down the runway since they can’t climb.