Yes, giving the SSPX jurisdiction to hear confessions is objectively a good thing, taken in isolation.
But we can't really take this in isolation. At least the wise or non-foolish among us will not be inclined to treat of this ONE MOVE in isolation.
It is part of a broad program to re-integrate the SSPX into the One World Religion pantheon, of which the Conciliar Church is the seed or nexus.
This is a bribe, bait for a trap, if not a prelude to the formal deal itself! And no, a deal with Modernist Rome is NOT a good thing, despite some isolated good(s) here or there that would result. Maybe a family gets the guts to start going to an SSPX chapel over here, or a few of them over there.
But let us all not forget the big picture: the compromise of the SSPX with MODERNIST, APOSTATE Rome is NOT a good thing. It will do more harm than good.
When you're sitting in a plane with 0 of 4 engines functional, it's really foolish (objectively speaking) to gush over the quality of the seats, the entertainment, the drinks, etc. You have to look at the big, overall picture.
Yes, it's great that the Titanic fixed its climate control system. Hooray! We'll just ignore that big iceberg-sized gash in the forward hull of the ship. At least everyone can be warm and cozy as they sink to the bottom of the ocean...