We were discussing the 2015 WRX after all, it is port injected. The guy who wants to delete the rev hang from his VA WRX is advocating to blowing unburnt gas right out of the tailpipe, like a psycho.

Not true. Without rev hold it actually can go lean. The main reason for rev hold is to reduce oil vaporization.

https://www.carthrottle.com/news/what-rev-hang-and-why-do-pe...