This would not have affected AA/TWA either. Contrary to popular belief, the TWA pilots were not merely stapled to the bottom of the AA seniority list. In a nutshell, the lists were ordered by expected career value with a whole lot of fences put up around different bases/equipment on both sides. The problem TWA pilots had was the fact that most AA First Officers at the time made more (and therefore had a higher career value) then most TWA Captains which is why probably 2/3 of the TWA pilots ended up junior to most of the AA pilots.
This was all done prior to 9/11 during a time when AA was hiring 100+/month, so I don't think the possibility of furlough was at the top of very many peoples minds.
"Fair and equitable" treatment during seniority integration has always been a protection for pilots - this does not change anything. Legally, the measure of "fair and equitable" usually comes down to money. When a Captain at TWA gets bumped down to FO at AA and in the process ends up with the same pay or even a raise in a lot of cases - it was a hard case for TWA pilots to make that AA's proposal was anything but "fair and equitable".