We all know Einstein’s formula, E=MC squared. It would not be a stretch for Eve’s scientists to come up with a module that would transfer enough equivalent energy through a WH to collapse the entrance without having to transit it. Of course, the ship would have to be large enough to support the power requirements, so I’m thinking at least a Dread or maybe even Titan, and power requirements would make it so that this could be the only active module at the time. My thoughts on mechanics for it would each cycle would take 5 mins, during which the ship would have to remain stationary, similar to Bastion modules. Each cycle would add a specific mass amount to the transited mass amount.