I'm just generally curious. As i am aware, they have obtained more contracts from rival brands to build bikes there. Also, the single sided swingarm has no disadvantages to a traditional double sided swingarm. In fact, the only downside is you have to get a special paddock stand and maybe tools lol but i honestly think single sided is far more desirable, thats why you see them on more expensive built bikes. + Single sided is waaaaaay easier to change wheels and the chain alignment is fixed too.
I have not heard anything about it adding weight, if anything it should shed the weight lol but it doesnt, theres very little difference inbetween them from what i've read but I can understand the handling issue but again, from what i read, it doesn't affect it any different to a traditional swing arm. - Of course, if you're talking competition like MotoGP then obviously theres a reason GP bikes have traditional over single.