I did not understand everything in your post, except the following 2 things.
1. If you meant to say that Taro (really Sun), bumped up the R&D in order to reduce the current EBITDA and reap the benefits of this R&D in future years, when supposedly Taro will belong to Sun - YOU ARE VERY VERY RIGHT!
2. If you meant to say that Sun will loot Taro's cash if and when they own Taro - You are right again. they intend to pay for the merger mostly with Taro's Cash, currently $486.6 Million, expected to be much higher in the near future. Taro is a cash cow