Hi Danbo! I have not actually put every known substance into a cheese but I have tried a few things. I've only put chives into cheese but I have put many leaves and also birch bark on cheese as well as shiitake mushroom. (dried and crumbled....well the work "crumbled" doesn't give a true impression....I had to beat the hell out of it to get it into smaller pieces and then put it dry into a food processor. I also tried using a grater on it and that works fairly well on both hard dry mushrooms and tender fingers)
I don't worry to much about mold and things like that......mostly because after thinking I could get totally neurotic and fearful about it I realized that zillions of cheeses had been made under almost every condition and most cheese eaters live. I believe that there is almost everything floating around in the air and it's all about making the bio-terrain of the rind inhospitable to the things we want to avoid. Yes, dried leaves have plenty of mold on them but maybe dry your own and don't have it hang in a dusty drying barn, don't leave it around thrown on floors until processing, etc.
I think if I wanted to make a similar cheese my first experiment would be very high quality basil (from the garden) dried and crumbled into small pieces that I'd add to the cheese. Then for the outside I'd take basic pesto but thicken it by adding more dried basil.....or maybe I'd make pesto using coconut oil (maybe use a version with less coconut flavor) so that when at cheese cave temperature it would be thick.....i'd put that on like icing a cake. While it aged I'd watch for any patches of mold and if they appeared I'd rub a little coconut oil there to smother it. Might just be able to rub it without adding any more oil....sure worked that way on my paprika versions. Oh and the paprika was likely full of molds but I had no trouble with it. Hope this helps I don't think I'd boil the basil. You could heat it dry in a hot oven to kill off some mold if you're concerned. I'd google "can dried herbs carry botulism?" and see what you find.