^ Probably not
Let me give you my view for consideration.
Being a Sonor endorser myself, I can tell you first hand that they are a company that does not believe in giving people free gear. If you love the stuff, you should play it and pay what its worth. Marshall have a similar philosophy.
Unfortunately, as much as Sonor appreciates artists getting behind their name, I cant see them bending too much to the needs of their individuals.
I would suspect that perhaps Nicko's contract with them was not giving him enough exposure or offers as lucrative as competing brands, and considering his career opportunities, he probably moved over to Premier after they threw him a (probably sweeter) deal.
Of course, this is just my assumption, based on what many artiusts are doing these days - Trying to secure their longevity as artists in the industry by seeking out the best contract deals under various brands, regardless of who that may be. Its purely a business move.
By Sonor not bending to the whims of its artists in the same manner that many others do, it can guarantee two things.
1) Many artists will choose to go with a brand that will offer them the freebies and the exposure - in which case they arent loyal to Sonor or quality anyway.
2) The only people playing Sonors are the ones who WANT to be playing Sonors