Photoshop is for editing photos, not for drawing "assets". Unless you are trying to tell me that digital cameras will produce a vector drawing of scenes, I don't see bitmap editing software going away anytime soon, or ever.
Sure photo editing is one use for it. But much of it is in creating icons, mockups, non photo realistic things, and more.
Second, even if "most people" used Microsoft Word to build web pages I wouldn't treat it like a web IDE.
But you know being a designer having worked with designers, having had a large design agency and done some work for Adobe I do consider myself fairly informed on the matter.
Whether you wanted to consider it a web IDE is besides the point. I remember the days when notepad was considered the gold standard.
If it helps you get the work done who care about what it was supposed to help them with.
You are however missing the point here.
Photoshop is being used for web design and app design as much if not more and have also added things like vectors to it's suite of tools to reflect that.
It's has nothing to do with whether bitmap editing goes aware but with what is going to be the de facto standard. If anything post-processing of images have removed much of the need for the core functionality of photoshop and will be easily re-produced by other editors.
You know I don't mind being downvoted if I talk about things I have no idea about and which are flat out wrong.
But please tell me why this comment deserve a down-vote?