You aren’t concerned about your data privacy?
Giving trading information to a third-party?
Specially a US Big Tech.
Do you know who have access to your financial data? 
I would prefer getting the quotes from a third-party than offering my investment data to them. For example, using Excel or Python to have my portfolio and updating their prices from a third-party. And this way, it’s more customizable.
Importing and not exporting.