I haven't read about anyone receiving the OTA update so far - only about people sideloading. It may be that the OTA was halted because of the speakerphone bug, but no one seems to really know what is going on.
Carriers are also notorious for taking at least 6 weeks after the release of a new build to test it for compatibility with their networks, especially re. 911 calls. And with different 7.0 updates seeping in from OEMs, they probably dumped 7.1.1 on a backburner anyway.
And on a completely unrelated point, the latest Nova launcher update (5.0.1) does a nice job of mimicking the look of the Pixel launcher, minus the new navbar icons (and no Google Assistant, of course). So those of us who are too lazy to root can at least get a Pixel facelift on our dual-speaker thug thangs.