To be fair, they might well not even be aware of the recall - it was only issued by Fluke on 9th February (I only stumbled across it because I went looking for the Instructions for your tester). If Fluke did not inform everyone who stocks/sells their products (and that could be a lot), individual sellers are unlikley to have become aware of it.You would have thought in this day and age that people like ScrewFix would be able to use their database of sales to notify people of recalled products.
Kind Regards, John