Lucas suppressed the Catholic association after a majority of lay directors of the Intercessors of the Lamb, Inc., the association’s civil corporation, impeded him from exercising his legitimate governance of the association and providing pastoral solicitude for professed members. More information regarding the act of suppression can be found by following the links below.
translation: Follow the money.
Public worship and the celebration of the sacraments are prohibited on land owned by the Intercessors of the Lamb, Inc., a Nebraska corporation. Priests and deacons are forbidden from ministering at the property. Donors are advised that contributions to the Intercessors of the Lamb, Inc., will not go to support a Catholic organization. Moreover, the vows of former association members ceased at the moment of suppression. Catholics worldwide are encouraged to refrain from participating in Intercessors-sponsored activity.
Translation: No, you aren't supposed to pray in their places. Which means Sister Nadine's announcement might be direct disobedience (or maybe passive aggressive indirect disobedience) to the bishop.
The way it works with Catholics is that the bishop is always right when he has jurisdiction over a group. (I can think of several instances where the parish or order was not under the bishop, and legally disobeyed him, but even these places are often controversial).
Like the Army, you obey. Period.
So who is keeping all that expensive land?