^Well, the Flimflams are threatening to drive them out of business with mass-produced shitty cider. They could have come to a mutual arrangement, yes, but the brothers lack any sort of professional ethics when it comes to competition in the market, not to mention quality control.
Also, up until the end, Pinkie was being pretty insensitive. Fluttershy didn't help either.
Humility begets wisdom.
What was the context for that again?
I will say that while Flim and Flam and the Apples could have come to a mutually beneficial agreement, I don't think it would have been good in the long run. I kind of imagine the increased cider production eventually leading to a franchise, and the brothers gradually turning down the quality to increase production.
@Lurker: it might be worse for them than is shown. AJ could have written all her relatives to warn them, and since the Apple Family is all over Equestria, the Flim-Flams might quickly find their travelling scam become very unhealthy. Even moreso if we extrapolate that AJ's Orange relatives are in finance or legal and she has family in Applewood. All it takes are some nasty Audits or lawsuits or even a mockumentary from Applewood and the Flim-Flams are ruined for life.
Pretty much, yeah they got cocky.
Build a fool proof system, and the world will create a better fool.
My random thoughts
Hmm, Flims being multiple time scammers...makes enough sense.
Humility begets wisdom.
@Roy: They are multiple-time scammers. Remember? "Next town?" "Next town!"