rather than try to relay the whole thing, look up tweets from this guy: @akyranishimura
Furusawa went to ~consult in some capacity, but more likely in a supportive let's-work-together sense than in a here's-what's-wrong-with-your-POS-bike sense.
From @akyranishimura:
"Like someone said on his tweet, it is very unlikely that retired engineer will help rival manufacturer, especially in Japanese mentality."
I spent over a decade with Japanese nationals at Yamaha USA.
The company loyalty of that generation is monumental.