[tajen]

You may be better off striking out the paragraphs, sign it, and wait and see. It's a no-fuss attempt to fix something that you/we don't think is right, and if they don't raise the point, it means they're ok with the negotiation. A few colleagues have done that, because they've had and will always have (commercial) background projects, and it worked, even though our 1000+ startup has a venerable amount of lawyers per head.