The last outbreak was not contained. Prior to 2022, there was no sustained transmission outside of central Africa. The 2022 outbreak saw significant transmission all over the world. There were 30,000 confirmed cases and 42 deaths in the US alone.
Just because something isn't extremely contagious right now doesn't mean it can't become a pandemic. A virus can will mutate, it can go unnoticed, etc. As it stands, mpox can be transmitted by respiratory droplets.
Smallpox was a related virus. It too was transmissible through close contact with other people. It killed 300 million people in the 20th century. While vaccination is likely going to prevent mpox from becoming anywhere close to that deadly, I'd rather not play with fire. Don't ignore a nasty virus.