Same here. That's what some of my coaching clients do.From time to time I work with people who really struggle with the lunge aspect of the TGU. In those cases, I occasionally have them hold it overhead as usual until they get to the lunge, then rack it and stand up with it in the rack position. From there, sometimes I call that the end of the rep and have them park it safely, and other times I have them push press it back overhead and complete the "down" part of the TGU with it overhead again.
We also do these!I can't ever recall having someone do more than that with the KB in the rack position. However, people who are fans of training with sandbags do often hold the sandbag over their shoulder as the "default" position for the TGU. I can't say I have ever done those, but I can see why people would like it.
Absolutely works!As for the exact variation mentioned in the article (get up with presses) we have included those in our warm ups for kettlebell classes for many years. They are fun and a great way to "check a lot of boxes" all at once.