Here's the language referenced by the arbitrators in the America West / US Airways merger:

"The merger representatives shall carefully weight all the equities inherent in their merger situation. In joint session, the merger representatvies should attempt to match equiteis to various methods of integration until a fair and equiteale agreement is reached, keeping in mind the following goals, in no particular order:

a. Preserve jobs.
b. Avoid windfalls to either group at the expense of the other.
c. Maintain or improve pre-merger pay and standard of living.
d. Maintain or improve pre-merger pilot status.
e. Minimize detrimental changes to career expectations.

Stapling the F9 furloughees is most definitely a detrimental change to career expectations for them, and I don't see that guaranteeing them a recall into the Airbus has much impact on factors a-e for the RAH pilots.

but I may be a little biased....