You look like a bunch of girls in TPM,
1-Who makes a necro to play on the server, does not have the slightest intention of switching to bishop
2- The idea is just because there is a lot of CP embezzled on the server the event would be useful to help
3- If you do not agree simply do not pay the exchange when you finish the event if you are from the first group your class will continue to be "rare"