Transport for London should politely refrain from any statements like that, I believe. They hardly can allow people to enter the platform because there's no space to fit the crowd. There's sea of heads almost every morning in front of most popular stations' gates. Not because they have a gates issue, or any other unusual problem - they are just regulating flow that way. So, I'd kindly ask them start modernizing platforms to allow more throughput in the first place. Then let them experiment and play with statistics, by all means.