Dollars to Donuts the wood was not sealed prior to applying the stain. This is exactly what I would expect from coloring unsealed maple, regardless of the coloring medium. Maple will blotch like this if not sealed properly before coloring. It's not necessarily the fault of the stain. I've used MW Golden Oak before and it's worked just fine. If this were mine, I'd take the top back down to bare wood, use a stripper to try to remove any remaining stain from the pores of the wood, wash the top to remove any residual stripper, sand, seal, and re-stain the top. Same for the aprons too.