Supposedly(I think it's mentioned on Wikipedia), the Japanese were looking to get some SOMUA S35s. Their 47mm guns and 105mm/150mm howitzers were good enough, problem was in making more of them, and distributing them to frontline units. But there are other things they could make use of(not that...
Supposedly, it was originally intended to be larger(5 seasons is what I've heard). On one hand, this means the conclusion was rushed, on the other, a longer series would be vulnerable to the exact thing you mention.
Almost certainly, it won't be delayed too much, as other European nations knew how to do it(the Venetians at Crete, for example). my guess is it'll be delayed some 20 years, 30 at most.
As for neglecting the Amazon basin, they won't be able to do it for too long. The Spanish let the Portuguese...
In this scenario, I expect:
1) The Portuguese-speaking population of Dutch Brazil(which will grow to swallow Salvador and the Recôncavo Baiano(the arc of land around the All-Saints Bay) in the short-to-mid-term - more on that below) to be quickly expelled, both for religious reasons and to...
For that, there will have to be a change in mentality. The GWC wasn't interested in settlement, merely economic exploration; that's why Johan Maurits van Nassau-Siegen got the boot(and why the Dutch also got the boot 10 years later); he was lenient towards plantation owner debts, tolerant...