In a sense this is similar to what Amazon has been doing in few countries. Find top selling products, get them cheaper from somewhere, rebrand them, rank them higher and sell them. They don't need to invest in market research like their competetors, they get all data from Amazon.com

At big tech scale, this is clearly anti-compete and piracy IMHO.

Except in this case they still rely on people to create content to train their AI on.