Your attribution to the FF community is very big looking at your posts and filters submitted. I am grateful that you and others have made so many contributions and let me profit from your experiences.
Yes you’re right and I was thinking the same, these are not ‘Presets’, these are Snapshots, which is a completely different animal. Useful sometimes, but IMHO nowhere as important as real Presets.
But I came across something : When loading an external image through the menu (so loading the image into the Image component - not the Color Control component), and making a ‘Preset’, the preset thumbnail shows the Lifesaver and not the image. When quitting FF and restarting and then clicking on the Preset made with the external image, that image does not get loaded. And FF does not complain if the external image has been renamed or moved. The images loaded into a Color Control component and saved in a preset, show that image in the thumbnail of the preset and do provoke a complaint from FF when the image is not at the same location.
Anyway, there is different behavior between the images in the Image component and images in the Color Control component.
I wish I would understand why that is
A possible solution would be for the creators of FF, to make possible a way to save a second kind of Presets (real presets

, which do not include the images used and thus behave more like I (and possible more people) might expect from a preset. So actually call the current presets 'Snapshots' and create the possibility for Presets.
The Stone Age did not end because they ran out of stones. Niels Bohr