Valuation is not important. These are private market transactions. Ultimately all the investors made out well, and it seems the company is more profitable than it was before. At least expenses are way down and if those expenses are correct then they are paying off the debt and making a good profit.
I couldn't possibly disagree with this more. Since the acquisition Twitter/X has had far more features at a far faster pace than in the 10 years prior. They've added all sorts of great stuff, and recently have been near the top of the charts in the Apple App Store.