Oh god no. It's one step forward, ten steps back. Take a trivial example of desktop application integration, which is with us since Windows 3.11 - common file

Oh god no. It's one step forward, ten steps back. Take a trivial example of desktop application integration, which is with us since Windows 3.11 - common file and printing dialog. Nothing standard like that on the web. Most web applications won't let you even export the data in editable format. UI - horrible. Desktops had standard menus and shortcuts since 1980s. In fact, many SPAs are trying to invent their own desktop. I could go on.. the fragmentation of web apps is so much larger than fragmentation of desktop apps.