Having worked for 10 years on both Delphi and VS, I understand the experience you are talking about. Having the ability to draw UI is amazing, and super productive. For business applications, it is amazing.

However, I still remember at around 2002 that we where asked to build specific custom user experiences, I think it was around reports, and using VB or Delphi was a lot of programming using draw commands... while using HTML and CSS it was fairly easy, even with the browser differences of CSS.

Any custom component in VS or Delphi (I am talking atomic components, not composite) requires using basic draw commands, and a lot of them.

The end result was that both platforms are not as expressive in terms of UI as the web, you cannot compare basic draw commands to structured CSS.