Interesting. I recently had a calendar printed from older photos (some only 4 megapixels), and a few of the pages really would have benefited from upscaling (provided the results are not just interesting, but actually usable.)
Too late now, but out of curiosity, I might see what the result would have been. Hope their trial version isn’t as terrible as LGs Miracast macOS application, which worked for 5 minutes before demanding payment 
.