I wasn't questioning the need by any means. I prefer the quad rails, but if one isn't planning to attach stuff it's not really needed.
Putting on a grip or a bipod mount is a completely justifiable reason to have one. If you're replacing glacier guards, and not going with a free floated quad rail...then this will probably do just fine.
The free floated ones will cost more, but will be much more sturdy as well. If you're upgrading from glacier guards...those will definitely be a step up...just not a very big step.
