Well, they're changing web development that's for sure, and stuff like CSS Grid ought to finally make using Bootstrap esque grid frameworks a thing of the past

Well, they're changing web development that's for sure, and stuff like CSS Grid ought to finally make using Bootstrap esque grid frameworks a thing of the past for many projects. But I'm not sure they're changing web design, at least for many people in the field. CSS Grid is useful, but most designs built with it will likely not be too different from those built with Bootstrap or Foundation or Flexbox. Non grid like designs are neat, but the fancy shapes and curved edges aren't something in most business website designs, regardless of how much easier they may be to make now. Just think it's important to realise that most sites and developers are not on the cutting edge, nor have unlimited power in terms of design.