There is no “absence” of meeting on the sabbath; all but a few mentioned meetings were either Yehova commanded
“high days,” or regular sabbaths. There is not one single first day meeting mentioned in the NT that is not a part of a Torah commanded feast, except for the collecting of money, which is forbidden on a worship day.
No “reiteration” of any commandment is necessary. Yeshua declared that Torah is his purpose in coming until all things shall be accomplished. We have 1000 more years at the least for that to happen. Not one jot or tittle!
It is indeed, thus the other 9 are reiterated, while the everlasting covenant of circumcision and other typological laws are abrogated as to literal observance being required.