From the article:

The CPU and GPU are one piece of silicon, and they're soldered to the motherboard. The RAM is also soldered down and not upgradeable once you've bought it, setting it apart from nearly every other board Framework sells.

"To enable the massive 256GB/s memory bandwidth that Ryzen AI Max delivers, the LPDDR5x is soldered," writes Framework CEO Nirav Patel in a post about today's announcements. "We spent months working with AMD to explore ways around this but ultimately determined that it wasn’t technically feasible to land modular memory at high throughput with the 256-bit memory bus. Because the memory is non-upgradeable, we’re being deliberate in making memory pricing more reasonable than you might find with other brands."

I understand the spirit of what you mean - having some of the major components soldered together wasn't what we expected from them