Should slow dancing be base game instead of just part of one pack?

The slow dance in the wedding pack is more like the added extra classic dance in TS2. It's not the same animations as the slow dance that came in Nightlife nor does TS4's slow dance have all the options. However, it's very much like TS2's classic dance where one sim tips another and they kiss etc. Because it's more of a slow waltz slow dance and not a couple's slow dance like TS2, it may not be patched into a base game however, two Sims facing each other Finally should be in the base game for sure.