From what I have read, google used the S5123 Exynos modem due to the Tensor being designed directly off the 2100 Eyxnos processor. Not a hardware designer, but from what I have read, might not be possible at this stage to integrate the 2100 with the X60 Qualcomm modem. So a recall to fix might be difficult, a recall for refund would be. Whether people like to admit it or not, the gold standard for modems for USA data traffic has been and still is (at time of typing this) the Qualcomm modems. Even Apple uses the X60.
For people living in areas surrounded by strong tower signals it might not be a big problem, for those without strong towers or a limited number of towers, it could be.
Hard to tell who and who does not have good data service as compare to the number of towers and/or towers that are strong. Not all towers are as efficient as all other towers.
I still hold hope for Google that they can actually fix the problems with a software update, and probably most of the bugs yes. But for many of us, the most important function of a phone is it is a phone.