It's a bit like calling Magic the Gathering «just» an older game. («It came out in 1993, how old, must be bad !»)
Your complaint would have more merit if the many innovations of Spring-Recoil engine games had been adopted more widely in the genre, but even Supreme Commander 1 came short (except for polish maybe).
You cannot expect RTS to become one of the biggest genres again, but it's still quite lively (yes, even outside of SC2 and AoE2) :
RTS is fun, actually (and you can learn it): a video essay - CloudCuckooCountry :
Your complaint would have more merit if the many innovations of Spring-Recoil engine games had been adopted more widely in the genre, but even Supreme Commander 1 came short (except for polish maybe).
You cannot expect RTS to become one of the biggest genres again, but it's still quite lively (yes, even outside of SC2 and AoE2) :
RTS is fun, actually (and you can learn it): a video essay - CloudCuckooCountry :
https://www.youtube.com/watch?v=Rl4myN8q_KM
A list of upcoming(ish) RTSes :
The Most Anticipated RTS Games in 2023 & 2024... SO MANY! - GamerZakh :
https://www.youtube.com/watch?v=tKujSK4FRWk
(Notably, including BAR, another Spring-Recoil game.)
(Yes, most of them will suck and fail, such is life.)