I watched the promo video somewhere and when folding the blanket, the video cuts and edits were very suspicious. I doubt it can fold a blanket at all.
Is your doubt caused by blankets being bigger than shirts?
(I didn't see it folding a button-up shirt, only tee-shirts. That's an extra degree of difficult and I do doubt that it can do that.)
A robot folds a shirt and you think it can fold a tee? Not unless it's explicitly trained to fold that one tee, too.