They have a floor plan which shows the kitchen is a reasonable size and stated it is 4.1m x 3.6m, so of course you could fit a table in there. I don't think you need to show that though, as people can already see a table fits in the dining room.
I haven't been in the house, so I don't know about the fireplace. Maybe there was a reason for not photographing - something damaged/spilled that they didn't want to show? Or maybe they were tidying up and had some stuff in the way and there wasn't time to move it for one photo? Similarly with the vacuum cleaner. I think estate agents often have the mentality that their job is to take photographs and not to tidy up.
Unless there are lots of similar houses in the area, I don't think this will dissuade people from viewing.