Others are prepared to invest a lot of money with the knowledge that they are promoting open source. So since companies like Bambu only use open source for their closed source without the cost and without giving back to the open source community, the buyers of closed source actively harm the opensource community. As example Bambu is part of the reason why prusa, for example, is partially moving away from open source. So yes the bambu owners deserve it and I am happy.
https://en.m.wikipedia.org/wiki/List_of_mergers_and_acquisitions_by_Meta_Platforms