https://www-yna-co-kr.translate.goog...ko&_x_tr_tl=en (This is Korea's equivalent of Associated Press)

As a precondition for approving the KE-OZ merger, the KFTC has banned changes in the SkyPass program that is deemed unfavorable to customers relative to the policy in effect at the end of 2019 at the two airlines. This restriction is valid for 10 years starting from the date of completion of the KE-OZ merger (the date on which KE completes the acquisition of OZ stock). Furthermore, any scheme for converting OZ miles to KE miles during the merger is subject to KFTC approval. The quality of service may also not be reduced, including seat pitch, free in-flight meals, free checked luggage, and lounge access.

It's not evident from this article, but KE's stance (according to statements issued to other outlets) is basically that they are complaining about the 10-year restriction on SkyPass changes on the basis of customer benefits (yeah, sure) and global competitiveness (obviously), but they are overall accepting the KFTC's ruling (and planning to negotiate the implementation details with KFTC behind the scenes) because it's the only way the KE-OZ will be allowed to move forward. They probably want this to be a done deal before the next administration (Korea is just a couple weeks away from the next presidential election).