If she were able to find a location where there was a Spirit that suited her needs more than there was always a chance that others would be looking into it at around the same time.
If she did not get there first, then it was possible that she would encounter those who were there to handle those matters, or she would be too late, as it would have already been dealt with by them.
That was the stage where Balancers would be competing for the better-paying jobs in less public settings, so there was a much higher chance of Ash encountering them if she happened to go to one of the locations that they were looking into or were already busy with something.
It was quite fortunate that she had only just started to touch any of the higher grade Spirits in the locations that she was making use of, since her actions would have done very little, and there was less to worry about in the present situation.