I did post up on the FB group a while ago that all recalls were cancelled. The problem is though RRG have returned to work a couple of weeks ago, they are running reduced numbers in the workshop with only three mechanics in and Takumi, Gary is not yet back in as he is still furloughed. I don't think he will be back till the end of the month and it is a struggle with the social distancing stuff and all that.
So yes the problem is down to the issues around the pandemic and not having a full workforce in, plus the issues of the mechanics being in close proximity to each other. I had a good old chat with Richard when my car was in for new discs and pads a couple of weeks ago and he said that that they are still very much working out how to operate safely, for all involved, which is harder than you might think. I don't yet know when normal service will resume, but on the plus side, if your valve springs do fail which is unlikely, you will be be covered as it's not your fault. I think all you can be is patient at this point.