@StefanoL @Natanox @dldnh That isn't an _accurate_ way of putting it, but it establishes the premise. :D
PHP is its own whole language and ecosystem, no different from Python or .NET or Java or NodeJS or, or, or. . .You get the idea.
What they're saying is that you don't need "rich client applications" to have a modern web experience, and they're right, but no more right than someone building with a lot of rich client interactions. :)