While there are many out there who may not understand the rationale behind this move by our Holy Father, I can only say it is in the end a cause for great joy. Yes, there are still many issues on which there is much discussion still to be had, but when other un-orthodox “luminaries” remain in communion with the Church it is only appropriate that those discussions happen within the comunion of the Church. For my part, let me only ask that those with concerns remember that this is not a statement that any and all of the various positions held by each and every member of SSPX (which is far from a homogenous group, it should be recalled) are fully orthodox.
For now, offer up several prayers for the success of this move by the Pope. And check out the commentaries available particularly at Fr. Z’s.