Hi Animal, Sorry to hear of your clutch concerns. The dealer group I currently work for, owns a Hyundai store and I've spent some time working in that service dept because we all fill in for each other from time to time. We have never experienced an unusual number of Tib clutch faults, but Tibs do tend to get driven hard, that's what the marketing leads people to believe they should be able to do. I agree with Barrie that a heavier clutch may make a world of difference when it comes to lifespan. Please don't waste your time going from dealer to dealer looking for another opinion or goodwill. When it comes to clutches all manufacturers limit their warranty to 12 months 20000 kms, ( if that), and oil leaking onto the plate to cause damage is relatively rare.
The only way anyone will know what shape your clutch is in, is by removing the transmission and checking it out, by that time you're on the hook for the cost.