Worked for Blizzard before all the Xbox layoffs… The confusing actions are mainly because the gaming division is now it’s own company within Microsoft and responsible for its budget and making revenue for the first time in XBOX’s history. The leadership level all got promotions and new titles, they shared new org charts to everyone, and then the layoffs and closures began almost immediately. It’s no longer about making their user base grow but about making money so expect their games everywhere and to see Game Pass lose features and raise prices.
If they were actually concerned about it, Valve could have done real NDA’s and/or plastered the build info and user name on-screen like most game tests. They’ve done it in the past so I assume this was a calculated risk/choice.