Even so (with everyone looking over their shoulder to make sure they don't finish before the guy next to them), that only accounts for an extra 20 minutes x 2 =40 minutes. I still don't get where the extra 4 hours go.
It doesn't seem like your familiar with the BMG "dining room" crowd.
Its not the regular BMG your thinking about, with all types of people. Its a very intense davening and only people who want that kind of davening go there.
There are other choices for those that prefer less intense atmosphere/davening.
Anybody who goes there knows what they're getting in to.