The Verbs menu taking a third of the screen is the original SCUMM UI. The "verb coin" idea didn't come along until Full Throttle/Curse of Monkey Island years after Secret of Monkey Island and LeChuck's Revenge.

The only tiny "original UI" subtlety in play with Secret of Monkey Island was that the floppy version used a text inventory menu and the CD version added the inventory icons. I can't say I've met anyone that prefers the text inventory over the icons.