I suppose it depends on how you see Seers. If you want them just to be the Google of your fantasy world then yes she will need more power points.
Because she only 'speaks' directly mind to mind and only in questions, as per the spell description, then if she is consulted then one of the party will probably be asked "Can you come back tomorrow?" or "Will you tell your friends I need more time?" or such.
She then has as much time as required to glean the answers. If she could be convinced to travel with a party for an adventure then the party will have to accommodate her ways or it may be necessary for a paty member to lend her a bonus spell item which of course is then not available to the party while she is attuned to it.
he original inspiration for the characters demeanor was that of Drusilla from Buffy the Vampire Slayer and River Tamm from Firefly but without the psychotic elements and definitely on the side of the innocent and with a child like sense of 'good' and 'fair'.
She was never intended to give a PC party the ability to 'Dru-gle' every question or challenge they are set.