A4, this is a pretty serious issue. Customers of Jota also use this forum and are surely asking whether or not they should seek a backup supplier just in case. There's a serious potential for Jota to lose customers are a result of this, would could genuinely place their AOC in jepordy. It's not to be taken lightly.
If a source to the rumour was put up it would apply some credibility to the statement, but to go on a public forum and toss something out so flippantly is reckless and unfair to a good operator like Jota.