Does no good when the low pop NA worlds won't have housing anymore than the high pop NA worlds. Resuming demolition isn't going to increase the number of available houses by as much as some want to think.
Some people forget that last year's resumption of demolition on NA worlds coincided with the patch for the data center reorganization. They wrongly attributed all those houses that suddenly appeared during the two week free transfer period as being due to demolition when they really appeared because players were transferring between servers.
The effects of demolition resuming didn't appear until 4 weeks after the free transfer period ended. The number of houses that appeared at that time were minimal (was much less than I had expected). And of course everything was gone before Shadowbringers launched.
When the number of players on the low pop servers is still 2-3 times the number of houses, you're not gaining anything by transferring.
Back in SB, average population per EU world ended up slightly higher than average population per NA world even if total population for the region was less. That's why SE added to new worlds to EU for ShB launch.
Even with those 2 new worlds, their average population isn't that much lower than ours based on Lucky Bancho's August census (their 22k versus our 24k). Take back Spriggan and Twintania, and their average population would be 26k per world. Then there's JP. Their average is 13k per world. As far as I know, the census is counting characters and not unique players so the actual player numbers would be less. Still the difference is pretty telling unless JP players don't bother making alts the way NA/EU players do.
But JP players definitely prefer being on low pop worlds while a large part of the NA/EU player base demand high pop worlds. Unfortunately for those of us who like the lower pop worlds, SE is paying attention to those who want the higher pop worlds and pushes the overflow onto the low pop worlds, which are no longer low pop. Unless servers get to the point that log-in queues last for 30 min+ on a regular basis instead of 1-3 minutes, I doubt it's going to change.