I also have to point that the planes attack with both rockets and mg even at target with no LOS.
The ability does not provide any LOS bonuses nor do the planes attack targets in the FOW, at least not when I tested it yesterday.
Whether or not with the fixes it becomes OP in a real game would require some ingame test results. The AT isn't very impressive, the AI is very strong but afaik it doesn't track.
One change it definitely needs imo is being moved up from 8 CPs to 12 CPs, as something like this should not be available that early even if it has a significant munitions cost.