Drupal is technically excellent. However, "technical excellence" without usability and maintainability is often a costly trap for businesses, even large enterprises.
1. Barrier to Entry and Talent Scarcity
Finding a good WordPress developer is challenging but possible. Finding a good Drupal developer is like searching for a mythical creature, and hourly rates reflect this scarcity.
For a company, this means vendor lock-in. If your Drupal developer leaves, you are in trouble. With WordPress, the ecosystem of professionals is vast and global.
2. Maintenance and Upgrade Costs
Migrations between "major" versions of Drupal (especially 7 to 8) are famous for being almost complete site rewrites. Costs can nearly equal building a new site.
WordPress, with Gutenberg and Full Site Editing, now offers advanced content management capabilities (dynamic blocks, relational custom post types) that were once the domain of Drupal, but with a fraction of the management complexity.
3. The Editing Experience
For marketing teams, Drupal can be daunting. WordPress, especially with well-configured interfaces, offers an intuitive publishing experience that reduces dependency on the IT department for every minor change.
Conclusion
Unless you have high-level government security requirements or extremely complex and specific data architectures, WordPress offers the best ROI (Return on Investment) and maximum agility for the vast majority of business web projects today.