When you think about the possible outcomes, the right move was to try for 3d. If the throw goes home and gets Rendon, then it really doesn't matter what Soto does. If the throw goes home and Rendon scores, Soto is on 3d. If the throw goes to the cutoff at 2d for a relay to 3d, Rendon scores. Only way Rendon doesn't score in the last scenario is if the throw from the relay beats Soto to 3d and Soto runs into the out before Rendon scores. That out at 3d doesn't happen if he stops after drawing the throw.
I would be curious to look at Henley, Rendon, and Soto during the play. Where was Soto when the throw went to the cutoff guy, what was Henley saying (continue to 3d or hold up halfway and get in a run down), did either Henley or Soto pick up where Rendon was when the throw was made, etc...