That's not true for professional mirrorless/DSLRs, which on the high end often use other cards like CFast, XQD, or CF. And as mentioned, many readers for those cards also integrate SD readers.

The vast majority of people these days just use their phones for cameras, and don't use point-and-shoots or other things with full-size SD cards.

So really SD cards cater to just the mid-range camera market, where people use mirrorless/DSLRs but not high-end versions that often use faster cards.

I don't think it's a good idea for Apple to make everyone's laptops bulkier so a small minority of people can avoid using a $17 adapter like this:

https://www.amazon.com/gp/product/B07NW8RPYN/ref=ppx_yo_dt_b...

For a company that prunes as ruthlessly as Apple seems to, including an SD slot in this day and age seems like an odd choice. I'm even a photographer and I rarely use the SD card slot on my MacBook Pro and certainly wouldn't consider tossing a small/cheap adapter into my travel electronics kit a big deal.

As someone else mentioned many of the higher end new cameras are moving XQD or something similar that is faster I presume to deal with video.

With that said, I have cameras that use SD cards and don't see the need for an SD port. I have usbc adapters that are not much bigger than the SD card that I can use on my MBA or iPad. With LR, I can basically load my days pics on either device and have them available everywhere.

I'm very skeptical they are adding back SD, so we'll see. I think MagSafe is going to be something like what came to the latest iPhone and not what people think of traditional MagSafe. Or maybe they'll add something to the usbc port that works like MagSafe if using an Apple cable.