[LordGronk]

Personally, I would think there are two answers to this:

a) the "we" in the question is exclusive, i.e, it only includes those that are part of the deal. In this case, I think "maybe". It brings to mind a perhaps slightly seemingly unrelated tale of how, prior to the current Paramount+ show, Halo was to be a film made by Niel Blomkamp, when that project was killed due to paramount's acquisition of the rights after years in development hell, a celebration was held by those rightfully glad to be free of shit management and the chance to move on. I have seen similar incidents in tech, but I don't want to elaborate.

If the "we" is inclusive, than the answer is no, no one is even slightly obligated to celebrate other's business deals, society, as is, seems to demand we celebrate far too much already.