Why do some of the EAs in the courses not have SL and TP?

Yes, the EAs for crypto and indexes have no SL and TP. They have exit conditions which is a different indicator (or group of indicators) for each strategy. This is because the different brokers provide a different number of digits. So, if we create strategies and EAs with SL and TP for some brokers it will work fine but for others, it could be 10 times smaller or bigger.