Sounds like a classisc victim... Low mileage, clean, probably hasn't been driven enough to see short interval oil services, etc, etc.
Read this and the links that you'll find inside the article
http://www.flat6innovations.com/services/intermediate-shaft-retrofit
If you have the opportunity to ask the question that you have posted here, then yes you should have the IMS bearing retrofitted.
Thus far this week we have saved one engine from IMS bearing failure (just today) and have had 3 IMS failure calls come in from various parts of the country. One of those that failed did so at 27K miles.
Low mileage, clean cars that haven't been serviced frequently enough and haven't been driven hard enough are what we see fail most.. The other day someone asked me how he should drive his car to help avoid a failure... My answer??? "You can't drive it hard enough".