Honestly, Bozja is already fantastic content. The raids are arguably the best to ever grace FFXIV.

The problem is the reward structure. There simply needs to be more. Make memory drops 100% for the relevant content - increase the amount needed if required, but remove the RNG. Add more fluff rewards, particularly from content people are averse to participating in. Remove mettle losses in raid content, or remove losses entirely - punitive systems never contribute to fun.

Personally, I enjoy the content. I have the time to enjoy the content. But bringing in friends to enjoy the content with me has been a hurdle because of the above.