Having been involved in developing and using software for over 30 years, I don’t believe there is such a thing as a truly intuitive interface (in the early days of Linux, many developers were fond of saying that the only intuitive human interface is the nipple).
Having never used any genealogy software other than Gramps (which I’ve been using for over 15 years), the features I use make a lot of sense to me although I am always finding other features that I haven’t tried or that were new in later versions of Gramps that I sometimes find useful. I would expect that at least some parts of Gramps would appear strange to someone coming from a different genealogical program, but that doesn’t mean that it is better or worse, just different.
In my experience, the same is true whenever a longtime user of any software package tries to migrate to a different package offering many of the same capabilities, whether it is moving from Windows to Linux, Microsoft Office to LibreOffice, Photoshop to Gimp. They are going to have more difficulty using the new package than someone who has never used an alternative package.
I suspect that I would find MyHeritage and other genealogical programs almost as unfriendly as you find Gramps as a result of using Gramps for so long without ever using any alternatives (I do use Ancestry.com
as a major source in my research, but I don’t edit my tree there; I just occasionally upload a new GEDCOM file from Gramps to make searching for new information easier).
Of course, with my tree I don’t think it is possible to provide a graphical view that would include even a significant portion of my tree, let alone all of it, as I now have over 66000 people in the tree and I’m frequently adding more. I am unable to
track ancestors far enough back to determine a blood relationship with most of them, but they are all connected in some way, and some of them have multiple connections (many of my mother’s ancestors came from large families that are interconnected in various ways).
I sort of understand where you are coming from.
The first word processing/desktop publishing software my mother learned to use was WordStar. She insisted on continuing to use it until she had to move to a version of MS Windows that it wouldn’t run on, and she has not been happy with any alternative software she has tried since because none of them are WordStar. She has accepted LibreOffice to some extent, but she has never made the effort to understand the basic ideas behind it, so there are many things she still can’t do with it or she has found a hard way to do them that causes her to do a lot more work than necessary.
All of that is to say that Gramps generally makes sense to many of us that are long time users, and I’m sure it made sense to the developers
as they were working on it. (While I haven’t involved with Gramps development, I suspect the developers did many of the same things I did in developing other software, relying on their experience, suggestions from other users, and their own ideas about what they liked and didn’t like from other projects.)
The developers will likely consider ideas for improving Gramps (but remember that they are all volunteers and that you are not paying for the software), but it is also worthwhile to try to learn more about using Gramps as it is.
You may discover that the Gramps approach is actually better or that it makes it possible to do things that cannot be done in MyHeritage or other programs.