You're right, it's just that a big and fast approaching CL clash makes some, such as myself, more critical as the he'll likely be way beyond his depth and it's such times where you wish we had better players.
It's pretty sad that at one point people felt he wouldn't be displaced as a starter in our midfield for years to come, that he was some sort of solution. (I remember serious discussion about whether Monty would be above him in the pecking order lol) It's kinda sad some feel that way about Urby now as well. Both are good squad and utility material, nothing more. These are the kinds of players we trot onto the world stage and get laughed off for doing so.
In Serie A though, his goals have been crucial but as you say, they shouldn't guarantee him anything moving forward.