Yes, it is ok to freeze Wagyu steak. In fact, this meat is typically frozen in transit as many people all over the world like to order it in batches online, especially the cuts of meat that are only available in certain countries like Japan.
If you are looking to order some Wagyu, we recommend checking out Crowd Cow, a subscription service that allows you to receive all your favorite beef cuts delivered monthly to your door!
Some other meats, including different types of beef do lose out on flavor and texture from freezing which is why many people are concerned about their Wagyu steak being frozen but, this type of beef is unaffected by freezing.
This is because the percentage of marbled fat within the cuts of Wagyu beef is so high.