Devils gotta keep that first rounder for when they trade for Josh Anderson.
More seriously the Devils have made their moves for the offseason. Time to put the cake in the oven and let it bake. Certainly not worth it to them to use ammunition for a bottom-6 forward at this point in time. Nothing against Gourde in terms of that it's just where the Devils are at now.
Most other teams are probably similarly situated with their teams but if not maybe Gourde fits there.
But the Devils roster is full and the money they have left is for Mercer and then perhaps Gritsyuk once the NHL season is done.