Right but if your only fogging when the cage is cool there is no RI risk. That risk comes with improper temps. All in balance. Here is the pod cast Bill Strand did. @DeremensisBlue did this podcast and can much better explain. But I have never heard in anything I have listened to or read that babies should not be fogged. https://www.chameleonbreeder.com/podcast/ep-89-naturalistic-hydration-for-chameleons/Although i'm sure there are some cases where fogging with babies won't hurt it and it will be fine.... but..... its a risk that i wouldn't take. But its not a huge risk because all chams are prone to RI and even adults can get it from fogging. but it sounds like its easier for babies to get ri's from fogging.
My advice is to wait for a few months. You mentioned that you do it in 30min bursts so it would probably be ok but the risk is still there. You have a choice.
Every keeper needs to obtain ALL the facts for their environment, species, and what they are wanting to accomplish. But I am a firm believer in getting the correct facts when making a decision and having the information to back up said decision. Rather then just telling someone no or yes. I can give multiple links for how to fog and how to set it up properly. This way they can make an informed decision based on qualified tried methods.