Yes, I think the Foundation still favours SD cards because they are cheap and easy to use. Which suits the Pi’s original base of education, hobbyists etc.

Of course that doesn’t stop the market seeing things differently and dropping Pis straight in to production use cases instead of moving up to the Compute modules.

I think the SD card problems are a little exaggerated too. They may not be the fastest but they are reliable enough if reputable brands are used.