I've had no problems with it and rate it really highly certainly a lot better than some of the cork type bar tape I've used previously, it's really grippy and doesn't get slick when wet.
I use the 1.8mm thick rather than the 2.5mm but the tape I'm about to take off my commuter is showing similar signs of degradation to yours, I've had it on just over 2 years and in that time it's done about 16k km in pretty much all weather.
That being said I wouldn't be happy with it being in that condition after such low mileage, I'd suggest contacting the company/the supplier to see what they say.