Well, so adapt them for the omicron. It's something every other vaccine producer did at some point, but didn't move forward because it was not the best policy outside of China.
Omicron appeared in last Oct. It's only been 6 months.
I also suspect that the gov doesn't want to make a new version as it would imply the original versions are ineffective (illogical I know.) Who knows how much they stockpiled the original shots ($$$).
