After a year since you launched it, if LN accounts for less than 0.5% of your search volume it would mean it has been rejected by users or they have alternative sources for LN. As for XMR, it does seem as though you have a solid customer base that are regularly using the service to obtain XMR. If you look at eXch, their customers are regularly using the service too therefore Monero is certainly not going away even if regulated exchanges are being forced in to dropping it.
I think one of the reasons XMR usage is so high is, because the Monero community was the first one we promoted the service to.
Then again, we've been trying to reach LN users more in the recent months. A year ago we started an
LN node, we've sent many keysend messages to all LN users (basically text ads straight to their wallet) and since August we're selling LN channels on
Amboss.space as well as OTC for people that need channels larger than 0.1 BTC. Despite this effort LN accounts for <0.5% of our search volume.