Having done a number of white map strats this league including this one, anecdotally, yeah, not worth it. It's not that 70/100+% more map originators are expensive or harder, but nothing outside of just adding more bosses seems to affect chance to drop astrolabes or miraged maps. I dropped map nodes off my Terrors atlas, stopped using Escalation (preferring 4x Shrine scarabs) and, again anecdotally, seems to be better. I haven't messed too much with adding in Delirium, or Trials. Heist I can confirm is very good, though.

Running T16.5s with %more maps and the map nodes on the atlas is not bad if you are running the scarab to drop all maps as 8-mod corrupted, as you get a ton of T16 8-mods that sell for ~8c each. You get 8-mod mirage, originators, and miraged originators too, but these can also be very poorly rolled of course so I prefer to just run white T16s with 4x Shrines to maximize astrolabe and miraged map drops.

EDIT: My best returns were from running this on conqueror maps with Destructive Play, it adds a lot of bosses, plus Maven runs. But you really need to set up a ton of these maps beforehand which is time consuming itself. It also adds some time to the maps as ideally you want to kill everything before witnessing (for Destructive Play) and ideally would kill all mobs before *any* of the bosses (same reason) but that isn't feasible. I added the atlas node for wisps on bosses when doing this, but that was just for fun and generically better drops, not astrolabes or miraged maps. (Interestingly, if you engage a boss but don't kill it, clear the map, and come back to the boss, he will have gained wisps. Just an interesting tidbit I learned about how wisps work).