statye .....nonsense.
in a lightie it is usually on the left wing because we do left turn circuits and the left wing is occasionally slower.
your point 3 WTF!! you would want the stall warning to come on if either wing was about to stall. think about it!
avconnection. the stall angles as you call them are 'trips' to induce stalling on the inboard end of the wing while keeping the ailerons flying.