1000 miles and bad U-joint

So I take my bike in for a weird noise after both of my difs got rebuilt under warranty.

the dealer says I have a bad ujoint and brp will not cover it or the damage it did to seals.

I keep a well maintained bike and greased several times since I purchased it new 12 months ago.

1. How can a ujoint only last a year or 1000 miles?
2. How comes the other 2 ujoints are fine?
3. How can BRP say this is not a warrantable case?
I have had atvs that were 10 years old with the same ujoints.
Are we to replace all ujoints annually to keep this from happening?

1000 miles and bad U-joint

So I take my bike in for a weird noise after both of my difs got rebuilt under warranty.

the dealer says I have a bad ujoint and brp will not cover it or the damage it did to seals.

I keep a well maintained bike and greased several times since I purchased it new 12 months ago.

1. How can a ujoint only last a year or 1000 miles?
2. How comes the other 2 ujoints are fine?
3. How can BRP say this is not a warrantable case?
I have had atvs that were 10 years old with the same ujoints.
Are we to replace all ujoints annually to keep this from happening?