There are more darknet nodes, but they only account for 3.4% of the liquidity.
That's a fair point though, and one that escaped me until you pointed it out.
Isn't this statistics reflecting only "clearnet only" + "clearnet + darknet" type of nodes? There are much more "darknet only" nodes: https://mempool.space/graphs/lightning/nodes-networks
Discussion
Plus we don't know that the darknet nodes have a different hosting pattern. 50% or more of those could be on AWS/GCP too.