Yes that's normal, and it's even worse with a remap
It's just unburned fuel/rich mixtures getting past the piston rings and into the crank case, which the oil absorbs.
The irony being Direct Injection engines are supposed to be efficient, lean burn blah blah.....
I've owned carburettor cars, port injection cars, DI cars, diesel cars...... they all do exactly the same thing to the oil, in spite of all the EU emissions BS! The advancements in fuel delivery have been so minor vs the massive amount of tech required to achieve slightly more efficiency than a carburettor