Only the business world runs on quarterly results and shareholder value and being able to say "yes, we are shipping 10 great new features next quarter, we have a $20 million marketing campaign, new user acquisition campaign, outreach to lapsed users, and PR campaign all ready to go" gets you bonuses and increased stock prices and new investment rounds.
Saying a bunch of Agile gobbledygook gets you...a job as a product manager or lead but you still gotta hit those milestones