Karl - perfectly legitimate to bring up issues like this here. It seems to show this wasnt an isolated incident.
Also, since the CC put the tables like this, they might not be very receptive to suggestions from the general public. I once said to a Ryanair CC during push back - "are those big sports bags going to remain in the emergency exit row like that" and she said "its fine". I said, "that was a rhetorical question; they are not going to remain there". When she served me tea later, it was slammed down so hard it splashed everywhere. Good, open attitude to safety there then!