You're thinking too short term. .txt far predates, and will far outlast, any standard du jour. I bet you wouldn't be so gung ho about security.xml. I really do

You're thinking too short term. .txt far predates, and will far outlast, any standard du jour. I bet you wouldn't be so gung ho about security.xml. I really don't see the issue. robots.txt works just fine, and this is simply following in its highly successful footsteps. What you suggest is change for change's sake.