I am not sure on the issue, personally. But I know this is not a simple, open and shut case in favor of double-blind. At the very least, it's complicated:
https://audiophilereview.com/audiophile-news/why-double-blind-testing-cant-work-for-audio.html
https://www.stereophile.com/content/highs-lows-double-blind-testing-page-5
https://www.audiosciencereview.com/forum/index.php?threads/limitations-of-blind-testing-procedures.1...
https://audiophilereview.com/audiophile-news/why-double-blind-testing-cant-work-for-audio.html
https://www.stereophile.com/content/highs-lows-double-blind-testing-page-5
https://www.audiosciencereview.com/forum/index.php?threads/limitations-of-blind-testing-procedures.1...