when I hear blotchy I automatically think minwax. because dye isn't also a varnish... it doesn't do that.
my personal feeling is that the darker edge doesn't look great, but the central part looks good. If it were me... I know I'd be much happier in the long run sanding it all back down and trying to do what you did on the faces on the edge as well. the face part looks pretty good to me.
the darker three piece section... once you get it all sanded back down... leave the other two pieces sanded to 220 but bring the darker 1 piece of up 400. i believe I learned that here and probably from scott r - that sanding to higher grit will burnish the wood a bit and prevent it from soaking up stain as fast.
I'd also recommend using keda dye instead of what appears to be varnish if I'm not mistaken. with dye, if the one area looks darker... you can sand it back a bit to even it out and it will blend well. most of it will be covered by the pickguard anyway... but that's what I'd do.
actually... what I'd probably do is sand it completely down and buy a veneer and glue it on. $23 well spent over at b and b rare woods: https://www.dyed-veneer.com/product-p/1227-10.htm then just lay down some glue, clamp a piece of scrap wood to the top with some braces to keep it flat.
all just spit-balling. do what YOU think is best.