I bet Microsoft would do something similar. If Microsoft entered an agreement with another company, Apple for instance, to build a version of word for the Mac, a fork, and part of the license has a requirement to attribute in the help file or something like branding requirements, and then Apple doesn't do it right, then Microsoft reaches out to Apple and tells them to fix it else be in breach of the license. They fix it, happy happy. They don't fix it and lawyers get paid.
This was MIT licensed open source software and an attribution clause was not properly respected. Hardly piracy.
This was MIT licensed open source software and an attribution clause was not properly respected. Hardly piracy.