Yep, as I've thought about this tonight I've begun to agree.
I would hate to see a run on catchers immediately following this, clearly directly influenced by this. I also am generally averse to making a change midstream, and I think the integrity of the league would arguably be compromised by changing the pool at this point, especially when the pool is small to begin with - especially when considering Lopez isn't a high impact player like Silver King or someone else of that caliber.
So, we'll leave Javy available for both Group 5 (where he's already been drafted) and here in Group 6.