Small "unless" and you are forced to make all your APIs generic because there might be many clients.
Small "unless" and you'll ignore all power features of your database and dumb-down your approach to data because user might want to switch a database.
Small "unless" and you will make your app ultrascalable even when you have no proof there'll ever be more than 100 users.
This is a disease that makes development slower and more expensive even when 95% of time, the customer needed something fast and cheap. No, most devs aren't building another GMail, most devs are building something that could have been modelled in 2 weeks in Visual FoxPro 25 years ago.
Well, it does require some though about SPA or website upfront, but will save lots of work and time to being online. I guess we can at least demand that much thought about things, instead of jumping immediately to SPA and causing weeks and months of more work.
I have seen it. It is all "But React has this built in!" and "React does this nicely!" until it comes to actually implementing components. Without a need for interactive widgets to avoid page reloads and avoiding becoming a non-SPA again, it will take a lot more time to get things done with React, that it would take to simply churn out server-side rendered templates the traditional way. UIs that could have been done in 2 weeks the traditional way take suddenly multiple frontend devs a few months, with things like the back button not working correctly.
