Just did some reading, based on the Logitech closing their API, on the IKEA intentions. And found this: https://www.ikea.com/gb/en/customer-service/smart-lighting-support/faq-smart-lighting/compatibility-protocols/
It seems they have an ambition to open up the API, and the current implementation is based on some reversen-engineering. Is that the reason for no updates on the current issue that blocks usage of Trådfri devices with Hass?