What do you call a user interface decision that makes a it partially easier to do a thing, but as a result you overshadow a more complete solution. The users then don't end up using the complete feature and are eventually worse off because of this.
Example, in Adobe Illustrator you have several ways to rotate objects. The most commonly used way is the selection tool's rotate ability, which is copied from PowerPoint and Freehand (the original Illustrator design didn't have this feature). The dedicated rotate tool is better, but users don't find it because they think they already use the right tool. This leads users being frustrated or disappointed.
EDIT: This isnt about adobe software that is just an example. This also isnt about progressive disclosure since for progressive disclosure to happen you need to be able to progress this does not apply in this case. Its more like broken progressive disclosure.