That’s really the only possible explanation for this…
Trump is hideous in the flesh, of course, so a handsome robot would be a lie. And the robot versions of President Obama and the other presidents are pretty fake and tacky looking, IMO — and since Trump is fake and tacky looking in person, you’d think it would make it easier to capture his essence animatronically.
But it’s like the Disney folks went out of their way to showcase Trump’s personal and sartorial defects, including the jowls and wattles, cotton-candy shelf of hair, poorly fitting suit, too-long tie, etc. Even though his big gut doesn’t appear to have been represented by the padding it deserves, I count the brave, patriotic Imagineers among the Resistance!