The police refused to enforce the law. A few days later this woman was arrested at her home for perversion of the course of justice, with the police telling her they will force open her door if she doesn’t let them in.
The arrest is in the second video. I don’t know if her arrest is related to the incident in the park – there are scant details online.
This is the relevant part of the law that applies to the royal parks.
Religious Activity in the Royal Parks
The Royal Parks (TRP) does not permit collective acts of worship or other religious observances in the TRP estate, either in their own right or as part of a demonstration, event or other activity. This includes spoken or sung communal prayers or other events that are primarily religious in focus. Exceptions are made for annual acts of remembrance at the regimental memorials in the Parks, which have taken place since the First World War.
As a public body, it is not the place of The Royal Parks to make value judgments between one religious observance and another. We must either permit all collective religious observances or refuse them all. Our approach is to continue to refuse all such observances on the grounds that they are not traditional park-related activities and the disadvantages to the public at large of allowing them would almost certainly outweigh the benefits to adherents of a particular religion or belief. The policy extends to the construction of structures within the estate with a religious significance.
Cultural events that do not include collective religious activity are permitted subject to the standard approval process.