Appears he did. It takes awhile for chemistry to come together and for a QB to trust a new guy will be in his spot. Again, we can argue McVay should have let them play a bit in pre-season, but it's water under the bridge...
With Van Jefferson coming back, will help Robinson as well. Always more weapons makes it harder to know who to cover... Kupp, VJ, Robinson and Higby.
Also, In Robinsons defense, the one incompletion he was held by his face mask.