I find it extremely frustrating to keep using the flutes until my opponent is out of PP. Also, you can't do this in Netbattle since there are no items (Except for held) there. And to top it all, there's no flute for paralysis.
Erm, no it doesn't. The only ones that block out non-missing moves are two stage attacks with hiding (E.g. Bounce, Dive, Fly, Dig) and the moves that block everything, (I.e.Protect, Detect)
No non-damaging moves at all? That makes you terribly vulnerable against counter attackers. I always like to keep at least one non-damaging move. Either a buff, (E.g. Dragon Dance, Calm Mind, Swords Dance) a direct protection move (E.g. Safeguard, Protect, Substitute), a recovery move (E.g. Rest, Aromatherapy), an annoyance move (E.g. Thunder Wave, Attract) or a counter attack (I.e. Counter, Mirror Coat, or Magic Coat). It makes for a far more efficient moveset imo.