1. declaring a low fuel emergency should sound like: "MAYDAY, MAYDAY, MAYDAY! KLM 691 declaring low fuel emergency request direct Syracuse at 15000ft" (or whatever optimum altitude). A PAN,PAN call is not correct. That's an URGENCY call; ultimately it was treated as such by ATC not giving them their optimum altitude rightaway.
As you have no idea how much fuel they had or were likely to land with you are making assumptions.
2. Whatever your alternate: you aim to land anywhere with 45min. It might be legal and not unsafe to land with 30 minutes, but far from preferable. SYR was KL691 alternate. If you want to make it all the way to SYR and planning to land with 30'' hoping to get your optimum altitude is flying on fumes in my book.
More assumptions.
3. KLM 691 also got stuck in the hold, giving them plenty of time to contemplate options. Going 'in' to an area with +TS and gambling on a expeditious landing & the risk of overshooting or someone blowing a tire on the runway ahead of you and knowing that in that case you will end up in an emegency is STUPID. KLM691 crew had their options and chose to ignore them.
More assumptions.
Being very familiar with the standards and abilities of KLM crews in general your pompous and unfounded assertions are perhaps the worst example of the multitude of ill-informed, speculative rubbish written on the preceding 20 odd pages.
Too much to hope that we all wait for the facts to be published?