While using the cursor as a gunsite may be gamey and thats possibly the reason for the change it doesnt stop players from using a marker or other things and place a dot on the monitor screen. I've heard plenty of players say they've done this and at 1 time I even made a similar thing myself.
I wont go into what I used as I consider it to be gamey now,however at the time it was a great aid! I dont use historic sights in all the planes I fly,instead I use the same sight in every plane,the basic british MkII. If you spend some time in the TA and work with the lead calculating gun/bomb sight,you'll quickly learn aim points from inside the cockpit,a sight picture,then you wont need any enhancements.