hackmeister

As long as the oak is fully dry and condensation doesn't form on the tools, there should not be a problem. Machinist's tool chests have been made from oak for decades; Gerstner still makes them.
My Starrett combo squares have sat on an unfinished red oak rack for 4 years with no discoloration of tool or rack. I also accidentally left a piece of air dried white oak on my table saw for a month last summer, with no discoloration of either.
If the humidity was constantly near saturation (like Florida) I might be more concerned, though.

Quick word of advice. Store the chisels with the blades pointing away from you when you pick them out of the box.

I have to admit; I probably would have said the same thing, although as a jab at those who obsess over their methods and techniques. Jigs are part of the craft, always have been, always will be. Craftsmen were and are paid for their output, not their effort.

For some odd reason, woodworkers often take pride in the inefficiencies of their methods; it is probably the romantic nature of the craft and its practitioners. I have done it myself, sawing boards by hand saying it was to "keep in practice" when really it was just for fun and bragging rights.

On a more serious note though, we more experienced wood workers need to remember what we say influences those new to the craft. We do them a disservice by implying that the most difficult or challenging way is always the “right” way and that any other way is some how lesser.