Hi Alejandro. Kolide, the company, has no future plans to improve the Kolide Fleet (our open source project). We are dedicating all of our resources to our SaaS app (which btw uses serial numbers and other methods to guarantee uniqueness and also has reasonable logic / customization around the display name of the device).
That being said, we have some passionate independent folks who are contributing to Fleet and might be interested in changing this behavior for you. I would file an issue in the Github repo if you haven't already. @zwass is a good resource to reach out to as he is now effectively leading Fleet development and has our full endorsement.