Yes, but it will be another 10-15 years before all the low-churchites are totally gone. There's still a handful in their 60's.
But as we've seen with Bp. Trautman, as their numbers decline their influence declines as well. People used to listen to and follow Bp. Trautman, now they just look bored while he rants and raves and ignore what he has to say.
He will continue to make things very unpleasant for the orthodox in his own diocese, more's the pity, but the days when he and his ilk ran the USCCB and thus national Church policy appear to be over.
And that -- like the 10,000 lawyers at the bottom of the Marianas Trench -- is "a good start".