A cross server Content Finder is a ease of use feature. There really is no good argument for not having it. You might even make some new friends along the way, and have more adventures then you normally would of. Really no reason why people would be so offended by casual players getting to do see content or getting gear. Its an optional ease of use feature that you are not being forced to use.

Takes the hassle of forming a party away? Yes

Organizes groups in a streamlined and efficient way? Yes

Does it let the more casual player that wants to do the games content be to log in queue up for a group, and start slaying digital dragons without the hassle of putting together a group ? Yes

If I just want to run quick raid instance in like my spare 1 hour I have to play the game? Yes

Are you being force to use Content Finder if they have one? No, if the content finder isn't for you then you don't have to use it.

Can you still do things the old fashioned way by getting your friends linkshell members together to run a raid or boss and run to the zone? Yes

If you want to make your own group by shouting in town can you still do that? Yes