If you buy a new set of top sport tyres (or any tyre for that matter) The minute you drive out the bay the tyres are wearing. You get home, have a look & yep, they will show signs of wear. Pop your new shoes on & go for a walk then have a look at the soles when you get back!
You use a carbon pole for one day & it too will show signs of wear.
Showing signs of wear isn't relative IMO as this will happen from day one. Your new carbon pole aint gonna look flashy & shiney for very long I'm affraid. If your pole wore out so that it was unusable after say, 6 months then yes, I would have issue with it. BUT, it "showing signs of wear" tells us very little.
I've owned facelift, gardiners, unger, excell, extender, harris poles & ALL show signs of wear. Comparing the best two- facelift & gardiners, both have worn at roughley the same, expected rate. I do clean the hose with a rag after every job though.