It's only weird if you learn Illustrator first. For me it was extremely intuitive, and at this point the shortcuts are muscle memory. I taught it to 10 year olds for 3 years.
But... you want people to use the software you make as a developer, I assume? In the same way that Blender provides an input mode for Maya users, Inkscape could provide input modes for Illustrator users.
FOSS is supposed to serve people, if your system can easily accommodate that, I see absolutely no reason not to other than some ideological desire to be different.
If someone that has been using Illustrator for years tries Inkscape and goes "Why the hell would it work like that, that's insane", then gives up, that doesn't serve that user nor FOSS, and they go back to paying Adobe.
There's a keyboard shortcut configuration for Illustrator users. Modifiers too, I hear the difference between ctrl and shift really hurts moving between programs.
