Whille the stand pictured is probably capable of filling the job requirements, I would not sleep easily.
It looks as if just one bolt(?) penetrates on the top vertical end pieces into the the top horizontal that runs from front to back. The long front piece, running left to right looks like it has two lag screws at each end going into the ends of the front to back horizontals.
I think you could strengthen this and make it perfectly usable. You definitely need more center vertical support, front and back, to help transmit the weight to the floor. The current set up has the end posts taking the weight by the one fastener and friction. It would structurally be more sound if the horizontals rested on the tops of the vertical posts, much like a header rests on a jack stud.
It looks as if just one bolt(?) penetrates on the top vertical end pieces into the the top horizontal that runs from front to back. The long front piece, running left to right looks like it has two lag screws at each end going into the ends of the front to back horizontals.
I think you could strengthen this and make it perfectly usable. You definitely need more center vertical support, front and back, to help transmit the weight to the floor. The current set up has the end posts taking the weight by the one fastener and friction. It would structurally be more sound if the horizontals rested on the tops of the vertical posts, much like a header rests on a jack stud.