Beyond this, I would also consider the arrogance of the present. When you look back at stupid decisions made in times past, it's not like they just blindly rushed into them (well not always at least). They certainly assessed them using the latest knowledge available at the time, and then moved forward after it was deemed safe and effective. It just turns out that we're quite frequently wrong on such assessments, and so things that fail in 'obvious' ways only look obvious with the benefit of hindsight. It's like how NASA can lose a half a billion dollar probe in modern times because nobody bothered to ensure that all systems were using the same unit systems. [1]
Take yourself a decade in the future and imagine reading about these mosquitoes gaining, at the minimum, a resistance to the bacteria being used. Would it really surprise you? Or would you be thinking something more along the lines of, 'Wow, how could they not see that coming?'