OK try this:
1) Safely remove the slide from your 24/7
2)Remove the recoil spring, leave the barrel in place.
3) Push the barrel completely out to the FRONT of the slide.
4) Tilt the muzzle of the barrel up (or down) towards the front sight.
5) Look at the area of concern where the chip or burr is located
under a good light.
You can see that the barrel may have actually dislodged the thin
spot of this web.
It's also entirely possible that the spring AND barrel may have
caused the burr to fall out by pushing on from both the top and the bottom.
Should Taurus have removed this during manufacturing or inspection?
Either way, IMO, it is not critical unless there is crack caused
by either fatigue or a collision between the slide and the barrel.
And I really don't see how the slide could fatigue in this spot.