I only hatched like I think less than 75k eggs in total imo and I already got 2 of the tier 1 secrets in the 2022 egg. the first hatch was 1 day after the update and the second was 3 days after the update. The funny thing is that I never hatched ANY of the Christmas secrets and I just resorted to trading for them. Really sucks that you didn't get the luck you needed :(