I couldn't say really. Just comparing the designs, there's definitely more meat behind the tip compared to the standard PM2 so I could see the Wharnie version being stronger. I use all my knives but I generally don't do anything considered hard use with my folders compared to some knife guys. I'd rather just use my ESEE for that kind of stuff. I avoid prying with the tip of my folders unless I absolutely have no other choice so I'm not really worried about tip strength and care more about edge retention for my use cases.
I sharpen my brother in law's knife occasionally, also a PM2, and he snaps the tip off all the time lol. I should get him a PM2 wharnie and see what happens.