Yes. I believe 140M euros is the EU contribution, apart from the French government. I suspect you won't see a battle between Saint-Martin and France, because Saint-Martin is just as much a part of France as is Paris. French government is very top-down. So, while Saint-Martin has some limited autonomy (like an American county), it has it by the grace of Paris.

In contrast, it is my understanding that St. Maarten is essentially independent, but shares a royal family with the Netherlands. It is kind of like Barbados, which shares Queen Elizabeth with the UK, but has its own, sovereign parliament and prime minister. So, the Netherlands needs to seek an agreement with St. Maarten's government as a condition for its aid -- if the Netherlands wants to set such conditions.

Because Saint-Martin is part of France, aid will necessarily be different, and simply becomes a national budgeting issue. I saw an article that France has already spent 160 million euros on Irma (perhaps in conjunction with St. Barth). A notable feature of the French approach regards insurance. France formally declared Irma a natural catastrophe. It is my understanding that this means that if there is property insurance, the French government will act as a reinsurer and cover both wind damage (which is typically insured) AND water damage (which typically is not). The estimated cost of that is 830 million euros. I bet the folks in Houston would like a similar system....