The thing about European carrier warfare is that you are almost always subject to land based air attack at all times, and you get coastal torpedo craft and all the lighter u-boats on your tail too. You don't get any of that in the Pacific, just whole navies or individual patrollers/suppliers like their cruiser u-boats. You're also well out of range of any land based air except at the very battlelines themselves.
Moving up whole air fleets doesn't do anything for you, but if you move up carrier-based small air groups you have an instant advantage in terms of immediate air power. You almost never get that in europe, everything depends on forward air fields for land based aircraft and by this, I mean you can literally field hop in a light passenger plane from Tunis to Vladivostok and make it to each next airfield before running out of fuel from the last.
ETO/MTO is all about playing checkers with airfields for land based aircraft. Carrier operations are only going to be highly circumstantial tactical achievements, never strategic placements like they were in the Pacific.