If the local Bishop gives approval, and if he's truly Catholic, you can trust it. Especially when it echos what Our Lady has already said.
True... But... The Bishop who approved it was still in the novus ordo and after Vatican II. Does that not raise questions as to whether he was truly Catholic and whether it was a fully valid approval of the True Church?
Or should we believe as true everything a bishop in the novus ordo tells us?
There are enough solid pre-Vatican II approved visions through the centuries that could better occupy our time.