"Mizter T" wrote:
[snip]
Plenty of other stations are like that - a morning peak Shenfield
train
coming into Liverpool St takes quite a while to get through the
barriers. I would doubt this would put Network Rail off at Kings Cross
either.

And somewhat closer to home, a packed 8-car FCC arriving at Kings
Cross Suburban.

How about a packed 12-car FCC arriving at Kings Cross main shed?

I wasn't aware that these were currently arriving at barriered platforms,
but if you say they are, then that would be another way to predict how
much chaos would ensue when an Intercity arrives at a barriered platform.

Other London termini stations have gates and 12 car trains too - thus far
sky hasn't fallen in.

....which is much the same point that Martin Petrov was making upthread.