After migrating web applications to SPA, with the modern javascript web frameworks, they managed to sell the idea that processing needed to go back to servers somehow. It happens that they wanted to sell serverless servers, and for them it was convenient to move all back into servers so they would earn much more. Somehow, devs and managers bought this terrible idea. Unfortunately. 

 Corporations that are selling user data to generate revenue try to cut cost by deferring server-side work to your client is what got my panties in a bunch.