If more high-value projects adopt the AGPL, legal departments may be motivated to revisit those bans.
Fitting decisions like this around the status quo makes no sense. It's exactly actions like this which change the status quo. I'm happy to say there are dozens of organizations without AGPL bans thanks to one useful piece of code I wrote. Most are small, but one is in the tens of billions of dollars in valuation.
Blanket bans of licenses are bad for free software. More pressure to revisit them is a good thing.