Would it be surprising to know that my coach only has me throw 3 punches 99% of the time? Almost all of the training is just different combos of jab, cross, hook.
The interesting thing about why stuff like boxing is useful for Aikido is that boxing doesn't train so much on the technique. Once you get the technique down, it's more about learning how to chain them together and when to use them and most importantly how to read your opponent.
Aikido on the other is on the end of the spectrum where we spend most of our time perfecting technique and where we respond to predetermined types of attacks so we don't quite learn to read your opponent so much.
As I mentioned before, perhaps the greatest thing you can take from MMA and sparring martial arts is the ability to read your opponent.