Just a few scenarios that I am sure will play out within the first few days of CT implementation:

Party A: Your group is only ilvl55
party A: /leave

Party A: We want to speedrun this by using method X
Party B: we dont feel like doing that
Party A: /leave

Party A: You arent members of our FC
Party A: /leave

Party A: GDI we dont feel like standing around all day while you watch cutscenes
Party A: /leave

Anyone who thinks its a good idea to for SE to implement CT like this, enjoy drowning in a sea of tears.