Every few months a client comes to us after being told by one agency that they need a headless React application and by another that WordPress is all they need. Both answers can be right. The problem is that neither answer was based on a proper requirements analysis.
When WordPress Is the Right Choice
WordPress is the correct answer when content editors need to be able to update the site without developer involvement, when budget is a realistic constraint, when you need a proven ecosystem of plugins for e-commerce, forms, SEO, and user management, and when the development timeline is measured in weeks rather than months.
The modern WordPress stack with Astra or a custom theme, ACF for structured content, and proper child theme architecture can handle the vast majority of business website requirements. The performance arguments against WordPress largely disappear with proper caching, a CDN, and code that does not load 40 plugins on every page request.
When React Makes Sense
React becomes the right choice when you are building a highly interactive application rather than a content site. If users are performing complex actions, if the UI has state that changes frequently based on user input, or if you are building something that behaves more like software than a website, React gives you the component model and state management you need.
Headless WordPress with a React frontend is a legitimate architecture for large editorial operations that need both a rich content management backend and a highly performant, customisable frontend. But it doubles the infrastructure complexity and ongoing maintenance cost.
The Honest Framework
Ask three questions. First: who will update the content, and how often? Second: does the user interface require complex client-side state? Third: what is the total cost of ownership over 3 years, including developer maintenance? The answers to these three questions determine the platform, not the technical preferences of the team building it.