You are right, I would still be about 160 nights and $400K short. But I wouldn't be complaining.
And if Marriott wants to raise the EQN for lifetime Titanium (LTT) to 1000 nights (comparable to Hilton Honors Diamond), I wouldn't complain about that either.
As it is, my wife and I are simply making the best out of the current circumstances.
We are both life members of the Admirals Club and the United Club, so "de facto" lifetime Premier Silver through LTT would be mighty fine.