If you are on the Pro Plan or higher, then you should also have access to The Formula Column, which could help offer a workaround!
My idea would be that you build a formula that counts the number of days between today and the date within The Last Updated Column . If that number is over 14 (aka two weeks), then it will output that the item needs updating and if not, it won’t show anything:
IF(DAYS(TODAY(),{Last Updated#Date})>=14, "Needs Updating", "")
You can then use The Board Filters to make a view/chart that only shows the items that require updating (aka items that have not been updated within the last two weeks):
Additionally, you may find some helpful information in one of our other formula support articles:
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The IF Function (If you’re looking to make conditional output based on other values on your board).
I hope this helps! Remember to mark as solved if this answers your question 
Cheers,
Jenna