Anyone who’s ever been burned by a hot tray or a casserole knows the value of a good oven mitt. Even the highest-grade oven mitts allow some heat to go through. How much protection do you think you will get from those thin, cheap-looking mitts you can find in dollar stores?
Other than being thin and poorly insulated, the materials used are inferior. They look cheap, and with the level of protection they are offering, you just can’t trust them.