This is being framed as a military issue, but the reality is that this would cause havoc with aviation as well, especially precision GPS approaches. Reminds me of a similar issue from 2012: https://www.gps.gov/news/2012/02/lightsquared/
I guess I'd rather they just... not... I don't really even think the trade-off in increased seemingly real health risk is worth making the cell network even faster.
It's going to happen though, if there's no mitigation that makes GPS more invulnerable to interference it will inevitably fail when actually needed.