A gloss finish does not come from adding shine. It comes from making a surface flat enough that light bounces off it in a straight line.
Spray more coats onto an uneven surface and you get a shiny but wavy top - look along it towards a window and the reflected line of the frame bends and ripples. Everyone has seen that on cheap glossy furniture, and most people cannot say what is wrong with it, only that it looks wrong.
So the top on this table is built the slow way. Coats go on, and after every few coats the whole surface is cut back flat with fine abrasive until the shine is entirely gone and the top is dull and level. Then more coats, then flat again. The finish gets thicker and flatter with each cycle, and any low spot slowly fills.
Only at the very end is the gloss brought up, by rubbing with progressively finer compounds until the surface polishes itself. The shine arrives last, as a consequence of flatness rather than a substitute for it. Sight along the finished top towards a straight edge, and the reflection stays straight.