What is the issue with the HTML Standard?

Step 14.3 of https://html.spec.whatwg.org/multipage/custom-elements.html#dom-customelementregistry-define

Defines lifecycleCallbacks in the order

1. "connectedCallback"
2. "disconnectedCallback"
3. "adoptedCallback"
4. "connectedMoveCallback"
5. "attributeChangedCallback"

Both Chromium and Firefox, plus the WPTs (Such as https://wpt.live/custom-elements/CustomElementRegistry.html) have connectedMoveCallback before adoptedCallback.