Why is the majority of the content in the game not ilv capped???

[Rongway]

There is a tool for people who want to run things a specific way.

/partyfinder

For general purposes, all non-Savage/non-Extreme content is tuned in such a way that the majority of people who want to clear it can clear it while the majority of people who have already cleared it and are helping new people clear it do not get so frustrated that they leave before the new people get to clear it. If this makes things too easy for you, you can stay subbed and do things when they are actually current, like many of us who have already cleared it and are helping new people clear it; or you can put together your own party in party finder while specifying the parameters that you want to use for your own party so that you run it with people of the appropriate gear level and/or skill level that you want for your specific party.