When Johnson said DOA, the Senate just gave up so that is why I call t one time.

Ah. I think that's a mistaken interpretation. Johnson said the bill was DOA before the terms were released publicly. That's a pretty clear indication that Johnson's position wasn't merely that the specific bill was unacceptable, but that any bill would be unacceptable and wouldn't move forward in the House. He didn't say that there were terms that were unacceptable, or concepts that would have to be modified before House approval could be granted. He put the kibosh on the whole process.

That's why McConnell "just gave up" - so that Lankford and other GOP Senators wouldn't be twisting in the wind taking political shots to negotiate changes to a proposal that would never get approved, no matter what it said. Between Johnson and Trump's later comments, it was immediately apparent that no bill would get put on the House floor. So that pretty much ended the process.

I share your lament for the loss of opportunity, but the Lankford/Sinema proposal was not take it or leave it. McConnell made the call (correctly IMHO) that Johnson wouldn't/couldn't get any bill passed in the House.