Well, the show remains terrible.
Hilarious that there were actually TWO different scenes that provided explanations as to why "ageless" characters had obviously aged considerably since their last appearance. Maybe they could have punted Guinan an episode (since her cameo was clearly just crammed in there with no real relation to anything) just to spread those out a bit? Downright laughable.
Guinan's comments were possibly tongue in cheek and - given the likely one-off nature of her appearance - can easily remain ambiguous (as is befitting of her character).