m0useanswered grow question 2 years ago its fine for young plants rooting but to much humidity will lead to other issues down the road, cannabis is not a tropical plant that requires that much RH.
Issues can be bud rot, mold/fungas on leaves and in soil, that leads to PH swings. With the moisture beading up and falling down onto the plants the sun will then burn the leaves as it acts like a mini manganfying glass outdoors.
once they are well rooted cut open some holes then transistion the plants away from the bag fully. fresh air is great for a growing plant.
Good Luck!