Different competitions first of all, different referee boards. You want fans to rise up against the PGMOL for a European mistake?
Secondly I’ve seen nothing but smug and arrogant Geordies online pushing the “Get over it” line for weeks. It was obvious Arsenal fans would do this at the first chance.
None of the modern era players had the potential of Cashley. It was one of the first big Chelsea power moves when Roman came in if I remember right, so it upset a lot of people.