So this was one of the trap aspects of the free cert. lol. This is how you shape the landscape, by offering something for free, then when you have a big user base, just start making your own rules. No wonder LE was supported by so many waterheaded IT companies.

"If you see a sudden drop in visits from Android, it is likely because you have a significant population of users on Android 7.0 or earlier. We encourage you to provide the same advice to them as we provided above."

Good luck doing that.