Mimesis - A threat to the message?

When experimenting digitally with drawing, I have been using custom brushes to create my images, that mimic the aesthetic of physical mediums, e.g Charcoal, Crayon or Pastel. 

Through my research I came across the term 'Mimesis'; 

"Mimesis is one of the oldest and most central terms in literary, art and media theory. The term mimesis (Greek: __ from __) is often translated in English as “imitation” or “representation.” The word has been used to describe the relation between an original object and a representation that attempts to imitate that original."

It is important to note that the custom brushes I am using, from Kyle T Webster, are very representative of this term. However It is argued that Mimicry especially in the context of aesthetic can appear false and dishonest. 

"Mimetic or Representational works of art are false representations"

- Plato's Symposium: A readers Guide by Thomas L. Cooksey

The concept of false/tacky looking aesthetics can be seen in a lot of Photoshop's functions;

A screencap from 

https://designshack.net/articles/graphics/5-former-design-trends-that-arent-cool-anymore-so-stop-using-them/

This has really got me thinking about the idea of mimicry and how it will be perceived, especially in my outcomes. As the essence of my project is based on creating authenticity and honesty within digital art, I feel that it may be threatening to the outcome of the work if I continue/allow artists to use the custom brushes? Would it have a more powerful message if they could only utilise the digital aesthetic of the digital and pixels, as seen in Hockney's iPad Art?

I am currently torn between creating aesthetically pleasing images using the brushes and images that convey meaning through medium. I will experiment with the techniques seen in Hockney's ipad drawings.