I don’t think it’s an issue to remove part of the web. I’ve got spiders outside that tend to keep blocking the entryway and I have to destroy parts that get in the way of the path. They’re usually back within a day or so.
For a more solid answer, the link below describes moving spiders entirely by relocating part of the web with the spider. I think trimming the web is going to be less stressful than that.
Why not just have them email sealed bids?