Op is right, contrary to what people have expected from this new patch, it has made the world much SMALLER.
We want bigger world not because there is not enough mobs to shot at at beta, but peole need some chance to avoid getting killed while they are doing pve stuff, or just looking for targets in their power range whatever.
It is not realistic to expect that a solo player or every individual in a small squad would equip signal masking module-maybe they can be fitted on mechs without excessive sacrifices, but not on ligther bots.
For a roaming party however it is enough to have one dedicated scout in the whole party. With skills it is possible to detect bots from 2-3k meters (depending on target)- that's 4 to 9 times bigger detection area.
To counter this somehow the only way is that the other party should have dedicated scout too. Since one scout is enough then this mechanism just favors bigger squads even more and as I've said: makes the world a smaller place so introducing much bigger islands very soon is even more important.
I can agree that these new modules make pvp a bit more interesting, but on the other hand they hurt the game, because it favors those who are already in better position and makes avoidiong unbalanced fights much harder.