On first glance...I don't see the firebox or chimney location on this cooker so I wonder where the heat source is. The warming cabinet is low too leading me to think that this is a gas fired cooker.
I would think that a grate that much below centerline of the tank would reduce the baffle plate height and width. Radiant heat from it would be reduced and I wonder if it would allow enough room for an adaquately sized throat.