Our only evolution so far is Azumarill which came when viewership was at a low and after an exciting and drawn out battle with our rival, people must have forgotten that Marill had even leveled up. Particularly considering it fainted in that very battle as well.
So with us 'grinding' Nincada, people will be very much aware when it levels up and there will be enough B's to go around that I find it unlikely we will evolve it now. Only way to do it is when people aren't thinking about the levels and the evolution.
So with us 'grinding' Nincada, people will be very much aware when it levels up and there will be enough B's to go around that I find it unlikely we will evolve it now. Only way to do it is when people aren't thinking about the levels and the evolution.