I can totally confirm Mariu's view there.
Working for over 3 Years in the business of architecture I also often get the impression that there is a big tendency to copy paste designs and styles instead of creating something new.
And not only in architecture, in visualization too.
I often get asked: "Look here's a picture we found on the internet, we want our visualization too look like this." What they don't see imo is that every project needs a different approach.
If you want to just copy the style and mood and technique from one viz of one project to another project, it will mostly go wrong, because, guess what, it's not the same project!
So I try really hard to convince clients not to give me reference images and having a fix idea right from the start, but to look at every project different and try to find an unique and custom solution.
So yes, I think it is true, that photorealism took out a lot of soul and most photorealistic images are really boring, because they look just like, well, boring photos.
But its the same with photography either, it's a long proces from pushing the button to a final breathtaking architecture Photo, and between there is a lot of postwork involved, as it is in great renderings.
my two cents on that