I don't think there's a production application out there not using an entire toolchain for their client side code. I'm not saying it's _too_ hard for people to

I don't think there's a production application out there not using an entire toolchain for their client side code. I'm not saying it's _too_ hard for people to be cross functional. I'm saying it's hard enough that companies often times make an artificial separation. I don't agree with the microservice comparison because the separation of view/data layers could more easily exist with a back-end rendered application. It only exists more readily with front-end rendering because the complexity is so much higher that you find specialists in that field who can only work with that stack. The separation is purely artificial and driven by increased complexity.