No. The important thing is to get away from the cliff edge that represents reglaciation. That is the catastrophe which we most urgently need to avoid. Staying near to the edge of the "reglaciation" cliff is a really bad option for humanity and the rest of the planet. That way, potentially billions may die in a reglaciation catastrophe. Safety considerations are one of the main reasons for wanting to further warm the planet up.

We should not hang around on the edge of the "reglaciation" cliff, waiting for technology to develop. Nor should we engage in ridiculous schemes intended to cool the planet down. We should just walk away from the cliff - and probably go as quickly as conveniently possible before the ground crumbles beneath our feet. The longer we dilly-dally around, the bigger our chances of going over the edge.

This does not seem very complicated to me. Reglaciation looms as a clear and present danger. We must do our very best to go in the opposite direction. We can debate how fast we can safely run, how far away is a safe distance, etc - but run we absoultely must.