From reading other news reports it seems like this was pushed through because not enough folks were actually establishing a connection to Italy and just trying to get into the EU. Remember that one of the changes is that if you have the Italian passport today, but you were not born in Italy, you can still pass it on to your children - you just have to live in Italy for two years first.
According to https://www.studiolegalemetta.com/press/italian-citizenship-jure-sanguinis-restrictions/ they're also planning to require spouses to live in Italy for two years before allowing them to naturalize (currently a spouse who lives abroad can naturalize regardless of where the couple lives).
And another planned change is to allow minor children of Italian citizens to naturalize after living in Italy for two years.
Rightly or wrongly, the basic theme seems to be that they're trying to push more folks who want the Italian passport to actually move to Italy.
Yeah, especially that they just announced it with both immediate and retroactive effect, so no warning to those who were almost finished with the documents and ready to apply. I feel really bad for those who were just ready to apply on March 31st...
Good luck!