As a Law Schoolite, I can assure you those are outdated. McKinsey is not a regular Day Zero recruiter - that take 1/2 people every other year. London firms now recruit from colleges all the way down to GNLU. Oxbridge/Ivy LLMs now go to toppers from even tier 3 NLUs. Think-tank/policy jobs have generally been college agnostic.
Having said that, all these opportunities are open to a Law School grad, just that they are also increasingly open to lower ranked NLUs as well.
Having said that, all these opportunities are open to a Law School grad, just that they are also increasingly open to lower ranked NLUs as well.