Its completely different. With a base closure, they completely eliminate the category, hence no pilots remain. With a displacement, the category still exists except the pilot being displaced doesn't have the seniority to hold it anymore.

Also this isn't the first IAH displacement this year. 1506D was the last one. 20 Captains and 20 FOs in IAH. Why didn't we see this resolution then if it was such a good idea? And it being 150 isn't a sufficient answer because to each pilot actually displaced it doesn't matter if its just them or 150. To quote someone "Its no different to the Pilot being displaced".

So why not this resolution months ago??