Yes because inductive charging has a lot of losses, they are ~75% efficient, that means that you waste 1/4 of your battery capacity, and that is power that you also pay for in your electricity bill (for how it's small).

While a phone with removable battery, like it was normal back in the days, you just buy whatever number of batteries you want, when the battery is dead you replace it, and you instantly have a 100% charged phone in a matter of 10 seconds. It's surely better than a MagSafe, than a powerbank, etc.

Between having 2x battery built into the phone and 2x battery that detaches, I’d like the built in option.

I don’t want to deal with losing it. I don’t want to deal with carrying around 2 chargers/cables or charging both at the same time. I want the efficiencies of everything built together and not transmitted through casings

They run hot, and don’t stick to the phone as well as I’d like. No, MagSafe batteries aren’t the solution for me, and I too would buy a thicker phone with more battery life.

This! This right here. It bothers me how someone can be bothered at the prospect of having to keep paying Apple more and more and more. Must an anti-extreme-innovation person. I am just waiting for the day when Apple makes a travelling generator to charge that MagSafe battery and of course those special plugs (don't forget the wire™) and stands that will be proprietary and mandatory with that (if you don't want to void the warranty or risk getting sued by Apple for publicly endangering tech made by them).