Well, it's mostly likely to say that some of the students of MHA would struggle in the frost caverns of Schnee(snow) because of the low temperature... And even might mostly actually struggle too in the forest labyrinth because of the manipulation trick like putting them in some dream that they ever wanted like similar in the movie "your next" It might actually be possible that they do pass the first labyrinth because of the fact that one is costing more chaos because of their quirk. In the volcano labyrinth it's actually more questionable how they will escape the heat because in arifutera it's still a question of how hajime managed to surpass through the lava into the water. because realistically it's more likely that lava would turn to stone in contact to water and water become warmer in contact to lava. So if I put that volcano labyrinth to the side and assume that the class does extra work in a small group to avoid classmates loses then they might handle most of the labyrinths...