Do the 14 people of "Let Sleeping Mountains Lie" help in any way?

Follow up to : Who are the people who help with "Let Sleeping Mountains Lie"?

They show you that you could have up to 14 people "helping" you on this quest (as far as I know, it's just talking to you in the diner where you start the quest).

I personally had 12, and now have to go against a level 99 monster.

But is having more or less of these 14 in the diner change the quest? Like if I would have all 14 would the quest be easier? Would having less than I have now make the quest harder?

Does the number of people "helping" you in that diner change the quest at all?

Solution 1:

As discussed here, getting all 14 will nab you some extra items (including Oracle Ascension coins!) and dialogue, but will have no impact on the actual gameplay.