The joint of the verts to the floor piece are the ones that concern me. That racking thing is real and sooner or later those joints will fail.
Perhaps if the bottom (floor piece) was set vertically and connected to the vertical pieces (oriented to the table edge as you show it) using a pinned bridle joint (3 heavy pins per joint, with glue of course) you could save this basic concept. I know I have suggested a change of the design but... In fact I would run the floor pieces past the legs a bit - 3/8" to 1/2" and make them taller than the legs are wide. Just another way of thinking.
"... for when we become in heart completely poor, we at once are the treasurers & disbursers of enormous riches."
WQJudge