you are learning to be sceptical about stats.. but you still missed out one key word from your glossary again
This represents a 1,212% increase since the 503k Lightning payments estimate for August 2021 by K33 (formerly Arcane Research).
when they use guesses, estimate of previous data. then they might aswell not make any suggestions at all
also august 2023 saw ALOT of channel close sessions, reducing capacity... so with river being one of the remaining routes. ofcourse they will see more traffic going through them compared to normal.. who else can users use to route payments when a section of the network closes off

secondly river by increasing its channels over 2 years will capture more route paths
its like franchising a coffee shop. if 1 shop serves 1000 people a day, then they open 100 coffee shops in 2 years. they should not be surprised to get 100,000 customers using their business