Um...that's pretty awful, actually. That's their expansion revenue bump, that's pretty tiny. For context, that's about half of the revenue Heart of Thorns.
That's not great at all, and shows that while PoF may have been well received by the remaining community, it did very little to bring back lapsed players who left during Heart of Thorns. That would definitely explain the aggressive RNG monetization for mounts.
I didn't pick it up yet so I'm part of the "problem", but Anet needs to figure something out. If their revenue declines post-expansion follow similar trends that they did for vanilla/HoT then their financials are going to start putting them in tricky places with NCsoft.
Edit: For some context, GW2 was earning roughly this amount of money every quarter during the yearlong content drought leading up to HoT.