I emailed the Greg Marshall yesterday about this incident.
The lack of stewards and the time it took to get help was disgraceful. I had just came up the stairs from the concourse to get back to me seat that's next to where he had collapsed, seen the crowd around him and that he seemed to be having a seizure. There were no stewards at the exit, a few of us went down to the concourse area and none there, I checked the toilets and the turnstiles and no stewards there either, someone even asked the kids at the pie stall to call for help as there was no one else around. Eventually someone got a steward to come over from the next section and he casually saunters over and takes a look and walk away again as if he hasn't a care in the world.
The poor guy was laying on the steps for about 15 minutes before any help showed up. I know he was conscious when he was taken so hopefully he is on the mend.