Ornithomimosaurs also show a degenerate semi-lunate. The carpal situation in ornithomimosaurs and tyrannosaurids is VERY uncertain. They are simple nubbins of bone. Given that they are highly reduced, it is equally parsimonious that they could be derived from either carpus form. This can only be resolved by the parsimonious distribution of other characters.
Tyrannosaurs also show a good many more maniraptoran autapomorphies, particularly in the skull.
If you run the dataset without those cranial characters, tyrannosaurs fall back to basal coelurosaurs. Same with the arctomet feet. Sure looks that way. The feet appear to be a little more birdlike, but it's hard to tell about Archie's feet. I sure wish someone would CAT-scan an Archie and look at the neural pathways, assuming they would be preserved at all.