Agreed, but neither does it mention 'unlimited' 60 day VE entries.
It's an open book for Immigration to use their discretion.
Indeed, we've already had a couple of reports on the forum of being questions on the purpose of their visit, recently entering VE by air.
A personal friend, Thai spouse, been visiting on VE entries for the last 6 years, was pulled aside for the very first time entering at the beginning of November for a planned 5 weeks stay, and told in future to obtain the correct visa for the purpose of his visit. Like others in a similar position, he doesn't stay long enough to process an extension application.