Apple could add something useful instead of the camera button nobody asked for. Like 16GB of RAM, the X80 modem, and a 1-inch main camera sensor. The hardware on the iPhone is quickly falling behind if they don't add these things. But Apple probably doesn't care. It's all about the money!
Many things happen without users ever asking for it. No one ever asked for a Smartphone to be made, right?
I don't understand how Apple is falling behind, beyond just the numbers game which isn't really a way you can compare between different products. What is the actual detrimental effect of the numeric/numeral lack?