why is heater hose assy so complicated instead of 2 straight hoses

Hello, I can't see the related hoses, but I can tell you that the design is likely due to proper routing to avoid obstructions and outside negative influence (hot engine components, and so on) as well as coolant flow. It might seem counterintuitive, but believe me: if the manufacturer could have gone "cheap" and functional they absolutely would have! Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops