For the last several years Wordpress is on the climb, web developers are using it, professionals are using it, its a top platform. Top platforms also need to be optimized, themes need to be vet'ed for usefulness and high degree of capability. I have also been committed to the phrase "Don't cram yourself into a theme", which means, don't choose a theme and find a way to make it work to your goals. The design process is still important, understanding how content flows and creates a rhythm in your website is still also important.