Speed Battle gets a pass because it was more based after Sonic Forces that a direct successor to it.
I don't want Sonic Riders to have it's equivalent of Crazy Taxi City Rush as an official installment to the series.
Taste differs I guess.
If it's a mobile game I always want the control's as simple as it could be.
Something that I could play for 5 or 10 minutes on the break or while waiting something.
I do enjoy Crazy Taxi City Rush than Crazy Taxi Classic (both in mobile) because it's like that.
The controls too.
For me it's really no fun playing Crazy Taxi Classic, Sonic Racing Transformed, or Jet Set Radio on mobile with touch control.
I'd rather play it on the handhelds or consoles for those games.
https://www.youtube.com/watch?v=86E0Y8WLa5c