The piece is classic 60s junk art, with the random distortions of the human figure that went along with that. Badly executed, badly designed.
But he went in the wrong direction entirely. Doing the right thing for the wrong reasons is stupid and theologically unsound, in this case.
He should replace it with a carved or cast crucifix with a more conventional depiction.
Now, if you want to see truly SCARY, then take a look at the Isenheim Altarpiece:
Grünewald painted it for a leper hospital in Germany. I have seen it in person, and it will drive you to your knees.
In compensation, an outer wing includes a most beautiful and original conception of the Resurrection:
