Upon further thought, this seems like it will really limit the usefulness of Guided Games for anyone coming into the game later. As more clans reach the point where normal mode raids are not of benefit, they'll simply stop running them and there will be fewer and fewer experienced groups available to sherpa Guided Games players through the content.
Imagine if Guided Games were available right now in Destiny 1. I don't know many people who bother running Wrath of the Machine and when/if they do, it's Heroic only. I can't imagine the normal mode of the raid gets much play. So if you were a new player (not out of the realm of possibilities since places keep putting the collection on sale) and wanted to get a Guided Games group for normal WotM, you'd probably be out of luck. At the very minimum, your choices would be extremely limited.
I just don't get why they couldn't put a full blown LFG type tool into the game itself. Guided Games is a start but enough of this nonsense where people need to go outside of the game to third party sites or apps when everything could be taken care of IN game.