We think that's a fair deal, so we're not going to use negotiation time to change this. Also, 2016 VL users, and any O365 users on < 10.12 will simply get 16.16.x updates (mainly security related) until mainstream support runs out in October 2020. The base assumption going in, is that 10.12 or later is the minimum OS required for Office 2019 VL/Retail, and for continuing to receive new O365 features after 16.16. and I are hoping to meet with the 'Powers That Be' tomorrow and see if we can negotiate a better macOS support story going forward. He posted the following on the MacAdmins Slack: Paul Bowden who works on the Microsoft Office for Mac team is seeking feedback from customers. I'm just trying to spread awareness to an issue that may come to effect you in your organization. I'm not sure if anyone here is on the MacAdmins Slack but I'm guessing that's probably the best place to provide the feedback he's seeking.
I just saw this posted on Jamf Nation and figured I'd raise awareness on Reddit.