The EBP does a few things better than the standard version pad, but whether its needed or not will be a decision that the reader needs to make for themselves based on their own uses and likes with their weapon platform.

The length of pull (LOP) is increased an additional .040" over the standard pad. The increased padding may function to reduce recoil for some shooters, but it would probably be more noticeable for smaller stature shooters or those who are more recoil sensitive. While some people may laugh at that, it doesn't change that lessened felt recoil generally allows for better shooting. This may also become more apparent when paired with larger caliber weapons.

Shown below next to the Magpul CTR, the increased length is evident.