The amount of people who have done it is so minor it is not even worth mentioning. It was their mistake.If you push the sidestand all the way to its stop and then let the bike down it works 100% of the time.
If you are relying on a spring to take it down that is your fault. In my view the spring is the keep the sidestand up not pull it down.
Fix it if you wish. Have fun.
First off, the amount of folks who have had the sidestand collapse is enough that the subject continually arises on this forum time and again. Second, when it does happen, for whatever reason, it can and will cause major damage to your bike, not to mention your pride.
Third, any decent sidestand is made so that when you deploy it, the spring breaks over center and aids in locking the sidestand fully forward. Go look at the sidestand on any bike and see for yourself how they work. Any decent engineer intentionally designs a sidestand so that you can flick it with your foot, and once it gets about 60% past center, the spring snaps and holds it fully forward. Again, if you want to see how it should work, go look at most any other bike on the road and see what happens when you deploy the sidestand 60% and then release it.
The FJR stand can be deployed to 95% and still remains at 95% when you release it. If you do not absolutly make certain it is 100% fully deployed, the bike can and will fall over when you rest it on the sidestand. The reason manufactures make the spring break over center is to eliminate the chances of having the sidestand collapse from not being fully deployed, and is part of the design consideration. It may seem like a small detail, but it is an important function of a properly designed sidestand.
You may not think it a big deal right up until the time you drop your bike and do $500 of damage to it. If you aren't interested in fixing this problem, then I would suggest you stop reading this post, as you probably know so much about your bike already, there isn't anything more for you to learn about it.