Was there a reason that name was chosen?
A "not so good in english" french developer ?
Changing the default folders can cause some incompatibility with previous projects if not implemented correctly,
the examples and documentation will also need to be checked and updated. I'm not sure the trouble is worth it.
But, the folder names are only important for the publishing process,
it parses each specific folders to transform the files in binary or to add them to the package.
It's also used (in a cosmetic way) by the file browser in maratis editor :
"add entity" opens the meshs/ folder by default
"add sound" the sounds/ folder
etc
The Assimp importer also converts files directly inside the meshs/ folder.
Till you publish, you can actually use different folder names and everything will work,
you will just have to browse more folders when you import meshes.
So, let's say this naming convention is really a problem, I can force the publishing process to look at
all the folders inside the project instead of the current names. But, it will be a bit slower so I'm not sure it's worth it either.
The last option would be to specify the name of each folder in the maratis project file, so older projects could still use the current names, and the editor will be able to use the correct default folder when browsing files.