Amar was never stopped in his whole pro career and also never knocked down. This is a good opponent although i think he lacks power to be dangerous enough for Yarde. But Amar can box, i had him winning 3-4 rounds vs. Gvozdyk + a couple of closer rounds which is not bad at all.
It would be a statement for sure, but lets not get carried away here. If Yarde actually beats a top contender, then that would be a huge statement.