If an 800 square foot apartment in a complex with minimal amenities is renting at the cap then what happens to your 1200 square foot units in the same complex? That one should be worth more, but you'd be capped and have to rent it at the same price.
And then what about the complex across the street that also has a 1200 square foot apartment, but they have a pool and a gym and tennis courts and covered parking modern updated appliances and in-unit laundry and EV charging, etc? Clearly this one is worth even more, but nope, at the cap so it is the same price as the bare-bones 800 square foot place.