We NEED 8 person raids

Ok not because its hard but because it makes the raid so much more fun with more than 4 people. The raid is very possible to do with 4 but I feel most "fallout groups" have more than 4 people who are going to want to run it together I feel a solution or compromise would be to make solely raid teams 8 player max instead of 4. My group that I run with could have anywhere between 5 and 8 people and it would very much simplify the process. Let me know what yall think about this.