CT has been out for... hold on let count... 2 days. With all the time it takes to get access to CT, even less than 2 days of CT practice for the majority of the playerbase. That is not nearly enough time to expect pick-up groups to have their shit together. It took a few weeks for Coil pugs to actually clear through T4 without much need for explanations of fights and it's going to be even tougher with 24 people. So you should at least expect a week or two before most people running know what they are doing.