Why is he called Slipstream instead of Jetfire?

We know that Drift has two minicons,Jetstorm and Slipstream. What is weird is that he's named Slipstream. Not Jetfire. It's strange,isn't it? Have you guys wondered why? The people who worked on the show must have gotten the idea of having the Jetfire and Jetstorm situation but because of Hasbro's demand,they had to change Jetfire to Slipstream. So what was Hasbro's demand? It is possible that it might have been about trademark issues. Or they wanted a new character for the series. However,this backfired because they still made him look like a twin to Jetstorm,aside from the name change. This was the problem. They ended up not changing the colors due to the fact it'll goes with Drift and Jetstorm's color scheme. It was a wasted opportunity,right there. I know they're rivals to Fracture's minicons but come on.. 
But hear me out because this is getting interesting. In the Chinese dub of the show,Slipstream is known as Slip Flow while Jetstorm's Chinese name is Sky Storm. I have a conspiracy theory about their Chinese names and why they're important for their history. That would saved for another time,though.