so, it comes down to the WT's definition of "Spiritual Israel" or [Israel of God]
wt: The "12 tribes of Israel" of Math.19, & Rev.7 are the Earthly Subjects of the kingdom, but they are not The "anointed" Israel of God. so we have:
a) Spiritual Israel without it's full 12 tribes, and b) 12 other Tribes of Israel, that are not part of the Israel of God, --well, that is wt weirdness for you.
Jesus' "ransom" , "mediation" is effective immediately for the small wt Israel of God, but only in 1000+ years for the 12 tribes. -- wt trivia,
not endorsing, just reporting.