As I pointed out, axelnelson, this «hurdle» has «existed» many, many times «before.»
Many, many times before the iOS 14 update.
It has occurred many, many times throughout the years!
Since the root problem is a reticent manufacturer of a very tiny subset of email clients (consisting of a single email client and its derivatives), that hasn’t updated their standards compliance for more than a decade, it sure seems to be high time that said manufacturer be held accountable for the problems their lack of standards compliance has caused their users.
At the very least, their lack of standards compliance shouldn’t be holding the rest of the world back!
Back when I worked within the corporate and governmental sectors, I always researched out the root causes of issues we were having, and always went to the responsible parties to get things corrected.
While I did, indeed, have times when one company would blame another (such as a large data mining company that blamed an issue on Microsoft Windows [a very minor player, as far as the data mining company was concerned]), I would always pursue and research the issue until I knew what was actually going on.
(In the case of that data mining company, I was able to demonstrate that the issue was only in how they were coding their software for Microsoft Windows. They then had a corrected version of their software to me within a month.)
The best thing about getting the root cause corrected is that it helps the greatest number of people!
For instance, by getting that data mining company to correct their code, all their Microsoft Windows users were benefitted!