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 (e.g., 7 to 8, 8 to 9) 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 99% of business web projects today.