You're comparing apples, bananas, and pineapples while pretending they're all one thing. Switchblades are extremely effective (albeit expensive) anti-personnel (300 model) and anti-armor (600 model) drones. Shaheds are much larger, cheap, low on capabilities, but attritable used to attack fixed positions (e.g., buildings). These are all very different.
I don't understand your point. Switchblades are (roughly) more akin to FPV (300 model) and Vampire drones (600 model) with reapect to size and payloads. Shahed style drones are roughly like like low end cruise missles. Different form factors and different capabilities. All of them are needed, but they're all very different.