They ARE an indult. If you click the link below and scroll down, you will see the LETTER in Spanish sent by the Archbishop of Zaragoza, Spain to Fr. Philippe Brunet, SSPX DS in Spain. I don't know how to post it. A translation will be also included. The link is a commentary from our Bulletin in York, PA.

The Translation:

Zaragoza, December 18, 2019 The Archbishop of Zaragoza Fr. Philippe Brunet Superior of the FSSPX in Spain Casa San Jose 28607 EL ÁLAMO (Madrid)

Dear Fr. Philippe:

I received your kind letter of 13 December 2019, in which you ask me to renew the Indult to celebrate Holy Mass in the Extraordinary Form, which my predecessor, Bishop Manuel Ureña, granted aloud, through the priest D. Waldir Consuega, former pastor of Calaceite.  In reply to this letter, I communicate the following:
1. I had no knowledge of the subject until now.  
2. I am not renewing the permit because I know that in Calaceite there are not enough people to celebrate Holy Mass in the Extraordinary Form.  The participants belong to other parishes which are not in the Diocese of Zaragoza.  Moreover, it is not practical for the full communion of the parish community of Calaceite.  
3. With the same date, I am sending a copy of this letter to the present parish priest, Rev. Mr. Arturo Hollman Ladino Gutiérrez, in order not to authorize Father José M Jiménez, in charge of the Region of Catalonia and Aragon, to celebrate in any of the parishes, which he has entrusted to his pastoral care.  

With my affection and blessing,

+ Vicente Jiménez Zamora Archbishop of Zaragoza

I though I post the Juridical Analysis by an Argentinian lawyer hired by Adelate La Fe after the SSPX was regularized/recognized in Argentina. I did a duckduckgo.com tedious translation (only 1000 words at a time) but a very good translation. Adelante la Fe and Rorate Caeli had the English official translation at one time but disappeared. All the emphasis is theirs. There is no point on speculating. The Argentinian regularization constituted a "back door entrance" into Rome. Fr. Pflugger had stated at the time that 'the train to Rome is leaving and those who will get on will get on'. Most of the SSPX members may not be aware of this, but think about it, WHO are the new leaders of the SSPX? Fr.Pagliariani, +de Galarreta and Fr. Bouchacourt all three where in Argentina for a long time or are Argentinan. Coincidence? No! All of them would understand the implications of the regularization. I would not be surprised if the new Motu Proprio (expected tomorrow) will lead to the SSPX Prelature overseeing all the Summorum Pontificuм communities.