Of course the engine isn’t everything, a single engine turboprop (TBM, Epic LT) will be a more streamlined design. the starship has nearly twice the max TO weight, is physically larger (a little over 10ft in either direction) can carry 8 people including pilots with max speeds within a few knots of each other… I think the starship doing that 3 decades before the new TBM’s is quite impressive.
that being said the TBM’s are quite impressive, I’ve flown right seat on a 930 a few times and it sold me as the plane I would buy if I had $4mil to spend