Actually according to the v1.0 build of the circuit, there was already space for an MMCX on the back-side where the antenna zig-zag was placed.
Haven’t popped a new one to see what’s changed yet, but this isn’t as drastic as the MOAN discussion.
This is more about field-maintainability, and options.
5 dots of solder paste and a hot air gun? https://www.youtube.com/watch?v=2Z7nCAxS2Rg