I wasn't comparing the situations of the players coming in, just pointing out how the exact same thing was said right before the Özil signing. As in a great deal of fans gave it ZERO chance.
The implicit point would be that, although I don't have faith in him to do it consistently enough to get the job done, I don't put it past Arsène making a strong, intelligent move in a given moment. Even Xhaka is perhaps somewhat an example of this.
But yeah, if you take out that middle line in your post there, you could find those exact same sentiments "How long have people been following Arsenal?" and "This literally has zero chance of happening" peppered about the forum in the summer of 2013 (museum) poo pooing rumours like Özil.