Just looked it up after you mentioned it and yeah:
Update from igorslab.de:
https://www.igorslab.de/community/threads/update-zum-thermal-putty-auf-gigabyte-grafikkarten-nach-weiterer-lagerung-Ölabscheidung-in-bedenklichem-ausmaß-und-schweigen-als-strategie.11273/page-2#post-307763
Translation (deepl):
"So, a little update. Gigabyte TW has just contacted me - so the old connection is alive again. Tomorrow we're having a team meeting with everyone involved up to R&D and the respective PMs, but without PR and marketing. Putty and paste. Let's see... This is logically and fairly confidential, so there won't be anything more about it for the time being, but I'm sure that the result will fit. The manufacturer itself is responsible for official statements, that's none of my business and yes, the article arrived at the right address quite quickly. So much for the drama media, because it doesn't change anything and it is still underestimated that you can get a lot further with technical statements to the respective felt days. Only PR reacts to social media anyway and they usually don't know anything for sure 
Translated with DeepL.com (free version)"
The route taken by Gigabyte it seems is to keep everyone quiet about it, change the putty on later batches and hope it never caught mainstream attention.
As for me I did not get a response from Gamers Nexus. Either it's not that big of a deal to them or they are too busy, the email I sent had quite a lot of info, with all the pictures I've had, time stamps and everything.
As for the coil whine, I've had many GPUs, and everytime coil whine intensity seemed to be pretty random. I always play with headphones so it doesn't affect me much, maybe if it will be a really bad case of it, but still I'll take the coil whine, instead of thermal gel vacating out from memory modules everyday.