Did you disassemble the 130,000 mile bearing to inspect it?
Have you had enough experience with roller bearings to know a bad one if you saw it? Did you measure the diameters of the balls or check them for spalling?
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The upgrade makes sense on a low-mileage, nearly new car, which is both still highly valuable and most at risk of IMS failure from what I've read
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The reason we have developed the IMS Guardian is for people who want to procrastinate the IMSR as long as possible, or have a vehicle with value diminished to the point that the IMSR makes no monetary sense. Some will never have to retrofit their bearing while the IMSG provides audible and visual warnings from a dash interface.
You did this as an elective procedure and it was a wise decision. People who have faced the decisions related to an IMS failure do not share your same thoughts. We talk to them on a near daily basis.
Contrary to popular belief, just because your IMS bearing isn't extracted in pieces doesn't mean that it was "perfectly fine and as good as the bearing that replaced it".