With tons of effort put on browsers to adhere to web standards and seamlessly interface with different kinds of hardware and platforms, the nasty hard work has already been done. How many times will the wheel be reinvented? It is consumers who should openly demand for web applications and resist efforts pushing for app alternative. This will help the consumers hide their backs and developers save their backs.
Apple google don't “steal” from devs. Devs are a business and if they are worth their salt they account for business expenses in their pricing. If anything Google and apple “steal” from their OS customers. This is the same as saying government steal from corporations, while technically true they in reality steal from citizens as businesses account for their government expenses in their pricing.