omg that’s what I thought as well, this is considered as one because Juhyeok is in heat and most probably doesn’t know what he was doing. The alpha also doesn’t know what he was doing which is because he is already submerged to the scent of an omega in heat. Gosh but force smex is still force smex so it’s an assault
I also want to think Suah was influenced by Juhyeok's pheromone too, but remember he is a dominant alpha and even that glasses dude said he couldn't be easily swayed by omega's pheromone bc he is also a dominant. Also, Juhyeok is a recessive omega which mean his pheromone is not that strong. So, Suah was taking an advantage of that moment

I absolutely love a nerd, big softie, yearner, submissive alpha and I think we need more of that!! But isn't what he did considered an assault?? It doesn't matter if they already known each other since they were a child and best friends, Juhyeok literally didn't gave any consent at all. It started really good, but too bad, i wish their first smut scene was approached differently