The gloves are obtainable:
They are located in the building at the end of the Gargoyle Maze in the tomb with a lid that is "too heavy" to be lifted. Use a trap disarm kit on the tomb lid and it will trigger a poison trap. The gloves will also fall out of the tomb.
Great catch!
It is also possible to lift the lid with just Strength.
I had a character stack Strength gear and buff with Clear Minded, Bedroll, Human Racial, and all 3 Blood Rose Elixirs who was able to lift it. This character had 0 level-up investment in Strength.
