Changing land acquisition would be a huge boon for much more than just housing for the BJP. As you say this opens up a lot more opportunities to get rich from graft for a lot of non-housing purposes as well.
Yep! I mentioned housing specifically because PMAY-U and PMAY-G was supposed to be Modi's crowing achievement (also the easiest way to pull off graft en masse), along with UBI [0].
Food security, Housing, and UBI are the three holy grails - whichever party successfully delivers on all 3 becomes invincible for a generation, and why the BJP has been doing what it's doing.