Yes, that is understandable.
What isn't undestandable is people posting as though the transfer window is shut and Wenger's done nothing again.
If that happens then I'll be the first to criticize his inaction but given that the transfer window isn't even open much less shut I'll reserve judgement till it is. I know this thread is about how people are feeling now and a worry that he won't do enough is understandable and reasonable. Some of the comments on here go far beyond that though.