Combine the olive oil, granulated garlic, granulated onion, lemon juice and seasoning mix in a bowl. Add the crabs and let stand for 30 minutes. Grill the crabs over hot fire for 5 to 7 minutes on each side. Set aside and keep warm.
To make the sauce, combine the butter, garlic, lemon juice, wine, seasoning mix, and hot sauce in a large skillet over medium-low heat. Simmer for 2 minutes.
Add the crabmeat and gently cook on simmer until thoroughly heated. Be careful not to break up the lumps of crabmeat.
To serve, top the grilled crabs with the sauce.