If people choose to spend some their income on exp pots, that's their choice. That being said i wouldn't be against exp pots being removed, or at least the 1.5 ones. I think they make too much money for the server team for that to happen though.
All that'll happen if there's an exp event is that the people are normally too lazy to put in the effort to lvl will cain it for 4 days solid and close the gap that was worked hard for by those who have been putting in the graft for the past couple of months.