Antenna Gain

I’m currently reading through “antenna gain” missing in 6.46.8? - MikroTik what make the following statement appear wrong but can’t you just simplify to:

“You set your desired maximum Tx power in the CAPsMAN and lower it by using Antenna Gain on the CAP to lower Tx Power as you may want to limit coverage locally to e.g. don’t want it to range too far or avoid interferences.”