If you have reviewed the content of the third party code and vetted that it is secure then there should be no issues.
I have seen instances where Adobe Analytics plugins through the same warnings.
I usually use Visual Studio Code when I deploy custom code. Any issues with the code should be flagged in your code editor.
Also make sure when you test your build that no errors is triggered in the developer console.
Also place you code inside try/catch to make sure that if it fails, it does not impact your platform