Based on the usage description for a tool, my choice would be a Stanley Quick Change. I have used these for decades along side my chosen ESC knife. They provide the user the ability to change out the standard Wharncliffe blade for a hook-blade in seconds, or flip a slightly dull blade for a fresh one in seconds.
As far as using a folder in boxes all day ..., seems like the wrong tool for the job.
But, regarding your question related to negatives of a regrind ... being without a knife for a week or more vs. perhaps first simple reducing the existing cutting angle and/or reducing the TBE (Thickness Behind the Edge) by adding an additional bevel (between primary & secindary) call it maybe a transitional-bevel or maybe a convex-transition (mentioned previously by Brock O Lee) would in my mind be a couple options that would allow the user to experience and learn about how to maintain their own tools.
A PM2 is from the factory already a fairly thin/slicer at around 3.5dps in the primary bevels.
Give a man a fish, you feed him for the day. TEACH a man to fish ... A life-long tool.
Regards,