The blog post documents a relatively long engagement process with the web standards process. Starting with publishing an explainer (pretty common for the browser engines), directly talking with the other browser engines and web developers at the W3C TPAC conference, making concrete proposals to the relevant web standards githubs, taking feedback, etc.
Can you elaborate on the carelessness here? What should've been more careful?
Can you elaborate on the carelessness here? What should've been more careful?