I would say that the bike is not fit for purpose, at present. Faulty wiring causing incorrect operation of indicators and brake lights render the bike unsafe to ride and I would not hesitate to require the dealer to pick it up and fix the problem. In any case tinkering with the wiring could lead to invalidating the warranty, so don't make excuses for them.
I just changed to a newish Triumph Bonneville but I am tempted to swap my Piaggio X10 for the GT Continental, when they have had a little more time to iron out the bugs.
Regards TrevorCH