Popularity has been waning naturally, just like the popularity of Spring lobbies before it, with respective peaks around 2017 and 2010, but AFAIK the newfound popularity of BAR has been also bringing significant new blood to these other Spring/Recoil games.

(Without commercial levels of advertising, a lot of Total Annihilation / Supreme Commander / RTS fans had never heard of them, word of mouth can only go so far..?)