Now thats a strawman to end all strawmen.
It is a simple biblical reply to the idea that Mary and others are dead.
If Mary does not have ‘everlasting life’ using the KJV translation... what hope do any of us have?
The argument is as simple as one commonly used on atheists... if you believe the scientific research that indicates a finite universe and in laws of physics that do not allow for an effect to be greater than its cause... you don’t really have a choice but to believe in a supernatural cause for the universe.
Likewise... if you believe the words of John 3:16... it would be a fallacy to refer to saints... Mary especially as dead.