No, Canon released uglier cameras, as many others. Still some ugly cameras were excellent cameras, even innovative. Sometimes there are ergonomic and engineering constraints which may not leave much freedom to designers.
The G5X won't win any design awards, but it's comfortable to use, and it gives the user three control dials like bigger models. It's far easier to design a small, sleek body removing most controls - but it would become a far different camera, and much slower to use.
Let's see if the new model is more streamlined, but, frankly, if it's comfortable to use and takes great photos, who cares!