Honestly speaking, there's actually not enough information to say with 100% certainty whether or not there is a healer shortage. It's all just anecdotes against anecdotes.

But we do have some things that are facts:
- More people have been pointing out that PF is lacking healers recently.
- There's been a lot of screenshots of all the empty green slots in PF across multiple regions.
- There's been documented screenshots of people offering healers gil to help their party, and no one is offering tanks any gil to help their party.

That's all we really know about the current situation. SE is the only party with the actual numbers and we won't know about it unless Yoshi P chooses to address it in the upcoming LL.