it could be arguable, but at this point, I don't think "talent" is much of an issue here or with artist. If we were speaking of drawing pieces of art, yes, some sort of talent is required. But, in the sig making, it's basically just execution and stock work.
People often complains that they don't have enough "stock" to work with to be creative. I think this mind set is restricting because we set to our-self invisible limits that restrain our creativity. Most of my work now involves me doing most of the "texture" work. If anyone saw my stream, they can see that my render efx and lighting are made by me. Yes, some people who are new to Photoshop won't be able to understand all the tools in the software, therefore are limited in their art making. But, what is somewhat frustrate me is that I always compare myself to others in term of my learning process. 95% of any GFX in the sim league progressed faster than me. By that I mean that their sig making ability went rooftop so quickly, because they were able to receive some advises from others and somewhat some models to be inspired from. But me, when I learned how to use Photoshop, I learned it from scratch. I wasn't told to use a filter (Topaz) to make my render looks good. That's why I feel some people were "spoiled" in their beginnings, because they learned to do things to look "good" with a single click.
I might look like I'm bashing the users of Topaz and shits, but I'm not. Personally, I don't use that software anymore, it is a great piece of software, but I feel like the results I'm looking for are beyond that. This is the sort of pattern that I see from many new GFX out there. I'm glad to see that there's some people interested in doing GFX, but I think GFX is all about trying new things and even if you don't plan to do that as your job or something, I just think it is rewarding to see that your artwork inspires people to greater things and that's how we create an infinite chain of inspiration and creativity.