So anyhow, even if the persons involved in the agreement were sufficient agents to bind action, the action does not bind any kind of specific outcome beyond intending to take reasonable measures to figure out consensus in respect to whether a hardfork may be practical after some testing and release of seg wit.
Nope , it binds the developers that signed to deliver a tested HF proposal to the miners by July, but makes no promises that it will be accepted by core, other developers, or the community.
Luke can literally change a few lines of code , hand that to them , and that would satisfy the deal.
Do I think this will happen? No. I believe that luke may be trying to include some HF wishlist items as well, and thus why he feels pressure, but who knows?