Salesforce recently acquired Tableau and from what I hear the acquisition has probably improved things at Tableau.

This is a very special case though! Tableau is a company with a lot of Fortune 500 buy-in, but an aging development stack and business model. So this is the case of a somewhat more dynamic larger company acquiring a set of customers and some fundamental tech.

Usually acquisitions are from big/slow/established/monopoly acquiring an upstart and it’s no surprise that usually ends up badly.