Thanks a lot, it's great to see this feature slowly gaining some popularity.
Allow me please to reopen for a (hopefully easy) followup fix:
The "id" field should only connect together cells for hover underlining if they also have the same URI. Cells with same id, but different URI shouldn't be highlighted together on mouseover.
Someone else also asked this recently, so I think the doc wasn't quite clear here. I've just added another sentence to the feature's gist page to clarify this.