It all depends on what's important to us and what's not. No right or wrong.
What's salient to me are the quality of the bass, the dialogue, and the main action in front. The surrounds are a nice adjunct, but not salient.
The main reason my 2 surround speakers are 61" big RBH SX-T2/R towers is because I wanted more subwoofer bass in the rear to smooth out the bass response in the room. If we can have only 1 subwoofer, then the Center Front spot is among the best locations. If we have 4 subs, then the 4 corners are among the best locations. My center tower serves as that center front sub. My 4 towers in the 4 corners (1/4 width location) serves as the 4 subs in 4 corners.
The second reason is for aesthetic because I think 5 identical towers good great.
If the surrounds are salient to you, then ATMOS, 7.1, 9.1. etc., are worth every penny and time.