If you filter for major/critical outages, their uptime of core services in trailing 12 months all have two 9's.
https://isgithubcooked.com/?severities=major.critical
Also, a huge part of their cumulatively-bad availability story is copilot, which is a functionality (LLM inference) that most organizations have struggled to get two 9's of availability in for the last 9 months.