Would you mind telling me at what kind of Enterprise you had that experience with finance?
I led a product finance team at a SaaS company (ServiceNow, Atlassian, Okta, etc. tier) and all of our models and analyses are product driven including a/b testing and surveys with customers.
Largely Enterprises that had too much profit to care, or were controlled by a parent org with a tight leash on expense with no regard to product. Old-school businesses that had barely begun digital transformation. As long as they got their 2% growth YOY, there was no interest in closely tracking anything but the core BI metrics for growth and expense.
I would add that a/b and surveys are not good enough to identify customer pain and solve the problems they most want solved. There's a raft of feedback mechanisms that most Enterprises ignore because their products are so complicated that nobody wants to sit with the users and find new methods for continuous improvement. Agile/Lean/DevOps/SRE constantly emphasize quality and immediate halting of product work until bugs are fixed, yet no Enterprise I have ever heard of does this (even for reliability - one of the core metrics of any online product!)
as somebody who worked in this org: they are mostly focused on research, enablement and getting new tech used by operators of different sizes. Low level network tech is not sexy and doesn't really makes news