Let me try to explain my stance one more time.

Airline ABC will allow a total of 100 large RJs to be flown by it's regional partners.

Airline X has 10 large aircraft with 31 options
Airline Y has 20 large aircraft with 32 options
Airline Z has 30 large aircraft with 33 options

Now, not everyone can execute all of their options as that would result in 146 large aircraft. If the aircraft are distributed equally they can each only execute 16.7 aircraft each.

Now, Airline Y then states that they will not be exercising any options. This would allow Airlines X and Z to exercise most of their options without busting the scope restriction (There would be 11 options that wouldn't be able to be executed).

Now if RAH, only rumor because I haven't seen it confirmed and that is what I am trying to validate here (unsuccessfully), doesn't execute it's 50 options, it will allow the other regional airlines to execute more of there options without breaking scope.