The lightening port on the iPhone is barely smaller than the USB-C ports on other phones. The module itself is probably the same size. So space is not even a factor, but more of just extreme nitpicking.
I never had an issue with Micro USB for decades, and I never had an issue so far with my devices that use USB-C. Can't say the same about lightening cable/port.
Regular wireless charging is slower than corded. Fast wireless charging is about the same as corded, but very much slower than corded fast charging.
It's waaaay to early for a portless iPhone or any smartphone. Wireless charging is not in that advance stage yet, at least what's known to the public. And keeping a charge while gaming, using GPS, streaming, and etc, is something people are not willing to give up yet.
I haven't had an issue with any of the ports, but I'm careful with all of them.
That's an interesting note on charging while using the device. Reminds me of the Nexus 5: trying to answer a text while it's charging while standing over the device on the table and trying not to knock it off the base.