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 (original illustraror didnt have this feature). The dedicated rotate tool is better, but users dont find it because they think they allready used the right tool. This leads users being frustrated or disappointed.