As far as I know the USA warranty, as practiced, is extremely comprehensive and generous. I know of people who had their binoculars and scopes completely rebuilt at no expense even though one fell down a rocky cliff and the other was run over by a truck. My own experience, although less dramatic, included a complete rebuild of my 8x30 Mk IIs, and 10x25 SLC. (Mind you these were in use well over 13 yrs.) In general, this practice literally revolutionized binocular repair in the US.
Okay, will they continue to be this generous, and I use the word "generous" because the wording of the warranty doesn't explicitly refer to no-fault? My guess is that they will because anything less would be giving up a legendary position. Bad news spreads fast.
Happy Holidays,
Ed