the way they treat their employees
Like immortalize them in plastic as Mandos?
My experience isn't specifically with the Star Wars team.
I know about mass layoffs during downturns that Hasbro treats as a habit, not as a last resort. Even when a line is doing well and they decide to consolidate the workforce their actions and communications are fairly brutal and bureaucratic. There isn't (in my experience) a lot of reassigning of staff at these times, just a lot of hatchet work.
There is a reason that the leading industrial design department in the country will not refer students to Hasbro for potential employment, despite being located less than 15 miles away. There are no industry sponsored projects between the two, and the historically poor treatment of their workforce is a part of that.
And don't even get me started about their spanking machine initiations. Just kidding.
I think a lot of good comments have been made here about the potential competition, supplier relationships and finicky customer base to warrant a harder look at just how "fun" such a business would be to operate.