I've been watching my bootcamp students gravitate more and more towards this aesthetic. Not sure if it's good, bad or both. I think in terms of communicating professionalism and the ability to make all the aspects of a project adhere to professional standards and integrate well into a larger ecosystem I think it's good. At least in terms of communicating that to non-technical people which could include users, recruiters or maybe investors. If it bothers me at all it's only because it takes developers a lot of time (sometimes) to fight and kind of cover up parts of how html and the web behave on a more fundamental level. Slick websites kind of make the internet seem like inaccessible magic sometimes, at least they did for me before I became a dev.