Sure, but it’s still more work than a web UI, and using a web UI is a lot more flexible. For example, say you want to render a chart or some other visualization. It’s trivial to do with a web UI, but can be a tricky problem with native widgets, especially if you want to keep the UX consistent across platforms. I agree that using React Native can work fine in a lot of cases, but I can also understand the appeal of using the web UI stack. Another aspect is likely familiarity, people use the tools they know, and if somebody is already comfortable with a particular ecosystem they’re likely to leverage it.