Unlikely, and even if they will, what would u expect them to do? Tear down the whole wall and build again.
Like I said, many developers are using this method to save cost.
I am not even talking about Tahan properties, using cardboard / newspaper to replace bricks.
Just using less sand, cement, more water, already can save lots of $$$ and like I said, u will know when u drill the wall
This was told to me also by many contractors who do renovation immediately after VP
Sometimes, owner even tear down some new walls and rebuild, esp for say wet kitchen, corner lots, etc
Sad but so common ....
The one I encountered was the bathroom. I was trying to install a towel hanger. Not one hole, almost all holes drilled on the wall were like that. It's hollow and dusty.
With this kind of wall, one can expect nothing to hold strong to the wall.