Zaran
Adventurer
IOW, how my group has played D&D always.
No, The Mighty Grishnak in his platemail and five axes strapped to his back does not help scout for the party.
And that makes sense. But then there are situations where a group needs to be a bit stealthy and should have to take precautions. This could be anything and not just a Ranger's spell being cast. If the rogue goes up to each party member and helps each one stow gear or muffle things from banging together that should help with their stealth rolls. Also if I hear Group stealth, I think of one roll. Or at least One person being the main roll and others helping the roll. I would have no issue with the DC increasing for each member of the party participating in the Stealth roll as long as one flubbed roll doesn't always make the entire group fail.