I don't know why you say "Au contraire" and post a link which says, inter alia,
"They claimed the Icelandic government was required to ensure its guarantee scheme functioned properly. Iceland successfully argued this was not possible in a system-wide meltdown."
i.e.
they were supposed to pay, but couldn't be expected to because their committments were too great.
The link goes on to say
"Before its demise, the Icesave website told UK retail depositors: "You can also rest assured that with Icesave you are offered the same level of financial protection as every bank in the UK."
But a very different message quickly emerged as Iceland's banks started to fall. "We have decided that we are not going to pay the foreign debts of reckless people," "
The Icelandic goverment changed its own rules to deny compensation to foreign customers. They did this the day before the bank declared bankruptcy.
Your article goes on to say
"The agreed payout by Icelandic taxpayers was overwhelmingly blocked by the vote in 2010, leading to further settlement talks. A second settlement – with the UK agreeing to a lesser rate of interest on the claim – was reached, but again rejected in a plebiscite a year later.
While the EFTA court said the run on Icesave accounts had come about "as part of the worldwide financial crisis", many in Iceland acknowledge the roots of Iceland's 2008 financial meltdown lay in insupportable expansion on the part of the country's three leading banks — including Landsbanki — and their over-reliance on certain large customers"