Yes well, Paul himself declared if were his decision, he'd go to Heaven as he spoke this. Yet he shows that apparently God had more for him to accomplish, But in that explaination, Paul declares also, its gain to go to Heaven.
So, there is really nothing wrong with wanting to leave this old earth for Heaven early. It shows e have a longing to be with our creator, but also away from the evil and darkness and live in all joy, peave, love, etc.
And God declares that all nations, not every ear, shall hear the Gospel preached. thus, know then, there will be people who won't hear the Gospel of Christ while the "Church" is on earth.
As such, God knows then, unlke us humans, who will accept the Gospel and who won't and He can rightceously judge who will live and die without hearing It, knowing wether would accept or reject if heard the Word preached.
God Bless!!