Data Platform Group lead at Canva here.

There are many open and commercial options for hyperparameter optimization.

We didn't select Argo for hyperparameter optimization. The situation is that because we already used Argo for our ML training and data processing jobs, we wanted to see if it could be extended for hyperparameter optimization. It actually can!

As mentioned briefly in the article, we try to use tools with minimal overlap. It's not always possible of course and sometimes new tools are necessary.