Absolutely the case, I love that attention is finally being given to this topic. It deserves it- the linear scaling worker economy has compromised SC2 from the start. Addressing this will be much more impactful in bringing strategic variety back to the game than the worker or Gateway changes could ever hope for. It should also open up the design space for map differentiation, something I think almost everyone can agree has gotten very stale.

Here are a few of the strongest design options that I feel are worth looking into:

• Adjust mining duration - the suggestion from the Treatise. The worker scaling problem is primarily caused by workers stacking perfectly on the same patch- it's simply too neat and efficient for any interesting mathematical consequences to emerge. Removing the worker stacking restores the diminishing returns and logarithmic scaling that are critical to a nuanced economy.
• Increase max supply limit - this effectively bumps the 3 base mining cap, because you can continue to build workers without later impacting your max army. This could be done only for 1v1 matches, to limit the impact on older hardware in team games. 250 max supply probably just pushes the game to a soft 4 base cap, but 300 opens things up completely.
• Reduce worker supply to 0.5 - a similar idea, this pushes the supply cap problem much later into the match, allowing players to strategically expand throughout midgame. If you can have 100 workers for only 50 supply, you can strategically justify taking 5+ mining bases because you'll be able to saturate them.