The problem with Zapier is all the individual accounts and contracts you need with dozens of companies in order to have them all communicating for a real business. SaaS fatigue is a real issue.
Sounds like a call for them to partner with Venminder or a similar business to manage all your SaaS from a contractual perspective, as well as some CASB (cloud access security broker) to handle onboarding, offboarding, and governance of an org's SaaS inventory. Legit problem, but SaaS isn't going away.