Right, but there exist problems that need to be routinely solved and can be solved on glm 5.2. is the model state of the art when it is published? No. But when it comes out you could optimize it and let your solver run forever for quite cheap, and that could be useful if the only problems you want it to solve (for cheap) are solvable by that model.

And the high water mark of what can be solved by open models will keep going up.