No it isn't, because it does not allow you to play out the fantasy promised by the current epilogue.
If I decide to go adventuring with or as Gale, I don't want to decorate a home (the thing I decided against) or be stuck in Baldur's Gate. I instead would want to hunt down rogue shadow mages, search long forgotten dungeons for magic tomes (and a possible cure for my vampire husband), save villages from trolls and travel all over Faerűn - maybe team up with adventuring Shadowheart and owlbear again to best some Sharrans. If you are supposed to content yourself with housing, after you were promised the world, it's nothing but disappointing.