This kind of thing leads to concerned supporters of CUs advising me to not let the students be distracted from evangelism on campus. This is admirable advice. The BUECU is not being distracted from evangelism on campus - they're encouraging it and doing it in every way possible from chatting with friends and organising small group 'dial-a-crumpet' evenings to subject-specific apologetics talks in departments and events for international students. But being able to book rooms in the Guild regularly (where one can actually have food at a lunchbar) and advertise as a Guild society is a part of evangelism that they're not going to let go of easily. To imagine that such things do not matter is wishful thinking.
I have sought to serve IFES groups where they are banned from religiously secular campuses, and evangelism is jolly difficult! The path is clear - first the groups are banned from Student Union property / affiliation, then from university property - advertising - rooms, then the non-Christian students accept the dogma that Christianity is non-academic & irrational, then Christian students believe the lie that they have nothing much to say - that the gospel doesn't engage with their friends and studies. It doesn't lead to a huge mission just off campus!We aren't going to accept that we are illegal until we are ruled illegal - exactly as Paul did at every stage of his missionary journeys. He didn't hesitate to plead his citizenship, knowing that the government is God's servant for good. It's not that he started a public campaign to change the blatantly corrupt and anti-Christian government, but he did take every opportunity to show the government that the gospel was legal and that Christ is Lord and God. He did so not to fight for his rights but because Christ is Lord and his gospel is supremely good, not illegal - for Paul to point this out to authorities in court in every country and town he entered was recorded by Luke as being just as much part of his mission as was his synagogue preaching or Areopagus speaking! Therefore while keeping on with evangelism, we will spend some energy on this process, because Christ cries 'mine!' over every square inch of his world, and because his gospel engages with every person at every area of their life and world. (And as with Paul, in the outcome neither a mob-rule otherwise nor an emperor's dictate otherwise won't stop the mission we've been entrusted by the sovereign saving God.)
So yes, pray for the evangelism of these CUs. Pray for Christ's lordship to be proclaimed clearly and not given up as a pietistic offering to the god of non-engagement.