Also -- is all this "Orthodox stuff" being read? Discussed?
Yes, absolutely, amongst the 10 to 20 percent of the population that is engaged in the Church. When I was last in Greece, I was astounded at how much catechetical and devotional material there is. There's also a lot of substantial monographs being published. For example, something like 20 monographs published in a three-year period just on the theology of marriage. Compare that to our corpus in English, which probably has 10 or so solid books total from the last 100 years.
Applied in the lives of the faithful? If not, then so what?
Of course. Here's an example: By Western academic standards, the libraries are extremely poor, the digital integration even worse, and the lending/access policies are dismal. It's easy to be a pious Orthodox -- tons of monasteries, churches, daily services in parishes, relics, compatriots, clergy, societies, etc. -- but very hard to be a scholar or theologian. Less in the head, more in the living.
In general, when it comes to numbers, things are rather similar, just on a larger scale. In America, a large city may have something like 100,000 "Orthodox" people living in it. Probably no more than 10 to 20 percent attend church. Of those who attend, even fewer are deeply engaged. Here in America, that means there might be 10,000 people in church, scattered amongst a population of 5,000,000 -- thereby diluting any sense of critical mass. In a good Orthodox city, it's 100,000 people in a population of 1,000,000 -- allowing for the minority to have a relatively larger footprint in many ways.
Many are called, but few are chosen. That's just reality, in Orthodox lands and most certainly here in America (we have no superior record with which to bash the old countries). That goes for "convert" parishes as well, if you take a truly long-term look, instead of just a 1 or 5 or 10 year snapshot. Going back to the two parishes I grew up in as a kid -- both with a strong convert base -- almost every single one of the original converts have experienced extended periods of absence and a significant percentage are simply gone. Some became Old Calendarists; some have drifted away off and on; some have totally left; others have kids who experienced various levels of disconnection or apostasy as they matured into teens and then young adults, etc.
Again, many are called, but few are chosen. It's just the nature of reality in this time before the parousia.