I don´t think so.
I got ~40° @S905X and ~50° @S912 box - without any cooling modding
Room temperature ~20°
I assume those temperatures are idle, or maybe using very very low load, because i have never seen such temperatures running a movie in Kodi on any box in my life, and I have also Minix and Himedia boxes.
I also belive from your previous posts that you own a Vorke Z6, and that box runs way above that 50°C, in fact it runs at 80°C on my boxes and about every owner that has posted on Freaktab.