I'm sorry, but your English is not very good so I didn't really understand what you want to say.
- why is the bass movement difficult to sing over? Jimi did it!
- I didn't understand the last part, but: I listened to Jimi's version, and there is no minor sound. If you sing a G over the E chord it sounds bluesy, yes, but G# is in the chord, so it's more correct to write E. Then a guitarist can play what he wants - or can...