1. Does xAI seem more valuable than X?
2. Does SpaceX seem more valuable than xAI+X?
Not sure a lot of people would say "no" to either of these questions.
The only other question that I think is worth asking for investors, is how much stock in the acquiring company they get for their stocks in the acquired company. If the valuation of the acquired company in the deal is... optimistic enough, that seems like a no brainer.