I couldn't agree with you more. 10.0.0/.1 are the most unstable "stable" builds ever released by a manufacturer and should never have been labeled as such. These are Open Beta build quality at best. The A10 builds across multiple series now are an embarrassment to the company's legacy for having an outstanding skin (OOS) on top of base Android and directly contradict their current "Smooth" campaign.
Do you honestly think that security patches are a priority with a hundred or two legitimate posts like the one above being posted every day?!?!??? They have three series they've released shabby A10 builds for now (7T, 7, and 6 series (though 6 is still Open Beta so they can kinda get away with some crap there.)) Plus there is Closed Beta for TMo 7Pro going on in another thread and they haven't even mentioned a 5G build since promising an A10 build. Security patching NEEDS to be at the bottom of their priority list right now. To my knowledge, there has never been an exploited Android hole that could've been prevented had a device had there been a newer patch on that device. The OP phones can wait a few months for security patches while they sort A10.
This is the best solution for right now for regular users not wanting bugs.
This is an AWESOME workaround!!! Thanks so much for posting!!! 

Last edited: Oct 28, 2019