To be honest with you I find that statement rather defeatist. Sounds like "I have never tried it, so I can't do it" How do you know untill you try? Try it in the daylight, you may have a pleasant surprise. It is not as difficult as it seems.
There you go. As Chalkwarren said adaptability, you cannot have too many 'tricks up your sleve' if a stuation calls for longnets then use them. But, if purse nets are the better bet, then you use purse nets. try not to be blinkered in your approach, keep an open mind.
.
My opinions only, for what they are worth!
Tiercel