true that. But in the beginning it reads as "the 60-day visa is multiple entry". That's just wrong info. Even if the METV gives 60 days per entry too, putting it as "THE 60-day visa" suggests there is only one and there can be no ambiguity about the visa type if all we know is that it gives 60 days.
it's referring to a 60-day visa. Despite that the METV does indeed give this number of days upon each entry, it's not very common to refer to it as a "60 day visa" as that would defy the visa's purpose.
if you call Emirates in the UK now and ask them this, and their operator erroneously replies that it will not be asked, it also means nothing. They may still ask, and then you can't refer to a wrong answer from a operator in his first working week.
No airline is telling people that proof of onward travel is not required. If they do, it's just a phone operator making a mistake. All airlines are required to check it, as you know, and phone operators are not informing on enforcement intensity. They only inform on actual rules, which are are the same for all airlines.
Thai may be known to not enforce but they too will not admit this by phone.