Yeah, usually if you know what you're doing in raids, it won't take long for you to level up since you'll be able to participate in more of them. Sometimes what irks me is that people who are brand new to the game telling people who have been on multiple raids what to do. I've carried level 29's before, but it didn't take them long to get to level 30 or 31 because by then they understood what it takes to level up and the benefit from it.