I did think it was a bit silly that they had the tome only in coil2 and the only other options were the levi weapon or animus for the non-coil2 players. At least with the tome being added to CT in 2.3 that makes it a viable choice for those who are tired with Zodiac quests and Levi farms. Just gonna take my time finishing my Animus and have some tomes stashed for 2.3.