If they don’t want to pay to fix it, they can just block the user agent (or just fix their website, this issue is affecting them so much mainly because they don’t cache).
Relying on the competence of unaffiliated developers is not a good way to run a business.
They also state their opinion that the issue “should have been prioritized for a faster fix… Don’t you think as a community-powered, open-source project, it should be possible to attend to a long-standing bug, as serious as this one?”
It’s crazy how every single entity who has any issue with any free software project always seems to assume their needs should be prioritized.
The reason (IMO) this has languished as much as it has, is that most sites handle this fine; though I agree that it should have been fixed by now.