As I understand the Spanish police and courts have framed Tsunami Democratic as part of the ongoing terrorism investigation similar to the "Judas Operation" [1], where 7 members of the CDRs have been arrested allegedly with raw materials and instructions to build explosives and were charged with terrorism. Within the investigation, the National Police has tied the CDR's and Tsunami as being the same organization [2].

Not saying they're right or wrong in their alleged charges, arrests or decision to link Tsunami Democratic to terrorism, but it's all being run by the same investigating judge [3] which explains the mindset behind the decision. The presumed "terrorist actions" could be easily justified as preventive and explain the injunctions.

[1] https://es.wikipedia.org/wiki/Operaci%C3%B3n_Judas

[2] https://www.elconfidencialdigital.com/articulo/seguridad/cdr...

[3] https://elpais.com/elpais/2019/10/19/inenglish/1571484159_00...