If you actually research this, you will find out that the sharp edge, in this case, is a good thing. By beveling the edge, you are reducing the effective diameter of the lifter.
Let's talk numbers. The Mopar lifter is .904 dia. If you put a noticeable bevel, that's gonna be probably a .0025 to .005 chamfer. Thats if youre being careful and ljggt handed. So now you're talking about reduction of diameter between. 0.005 and 0.010 inches. So now your. .904 lifter is a .894 to .899 to diameter lifter.
If your cam is aggressive enough you could run into issues. Pretty unlikely but still a possibility.