>> If in fact the lion fish are wiping out the entire reef that they have been introduced to that would be a completely different scenario then a species assimilating into a new eco system, finding a nitch, reaching a balance as it appears that pythons will do.

Upscale didn't say anything about "they might reach a balance in the future". What he/she said was: "It is perfect right now. It is always correct in any given moment in time. "

That is nonsense.
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0.1 Peruvian rainbow boa (Amaru)
2.0 Brazilian rainbow boas (TBA)
0.3 Honduran milksnakes (Chicchan, Chanir, Hari)
1.0 Thayeri kingsnake (TBA)
2.7 corns (Cetto, Tolosa, TBA)
1,000,000.1,000,000 other critters