maybe, but could also be from ballast water from ships, so we should also ban all shipping. most damage is done by shipping and aquaculture , not always aquarists.
Lion fish invasion is sad as they eat everything, but this is a extreme cases , as most species of fish we would like to add are harmless, but anything has some risk.
Two possible explanations are releases from ballast waters from ships and releases of aquarium fish. Genetic work shows very little genetic variation which supports the aquarium releases as the source. Work in 2009 reports 8 "halotypes" which suggest the current population of lionfish originated from 8 females, again supporting a limited release from aquariums rather than a larger release from ballast waters.
http://www.safespear.com/v.php?pg=59