Leaving aside the fact that there's no chance of everyone adopting a new alphabet to solve a problem that doesn't really exist, I don't like the filled-in parts

Leaving aside the fact that there's no chance of everyone adopting a new alphabet to solve a problem that doesn't really exist, I don't like the filled-in parts of letters (G, W and M). They look too unusual in a string of text and would be too hard to write on paper.