Already went through this yesterday. The number of payments being processed by lightning is only part of this story. It's a great thing no doubt. If the size of lightning, the quantity of committed coins to lightning channels, doesn't increase massively then lightning is an easy target. Whirlpool was state level attacked with 8k coins mixed. Lightning is operating at about half that size. It's fringe. Fringe gets killed. Make these things norm to build resistance.