No I wouldn’t assume that at all.
I read them both and then I looked further into the circumstances. The links both had the feel of articles aimed at tugging the heart strings and selling papers so I searched to see what the financial circumstances of the family with the son who was disabled were, what resources they had, if the estrangement was temporary etc.
I would like to draw your attention to the fact that while the grandchildren had sued and were striking out because they were unhappy with the will the family had ample resources. http://www.stamfordadvocate.com/news/article/Trump-family-gives-back-to-agency-that-helps-4590816.php
I do enjoy the British tabloids but if I am really interested I use them to mine for data from other sources. I always like several sources and if possible use ones that are written closer to the time of the actual issue. The business with the will was apparently related to actions taken by the son that angered the father as well as a daughter-in-law issue. Trump agreed with his father but I saw no evidence that he intervened in the will; it was the father’s choice. The child at issue was not left without care; in fact he has had superb care.
If you take a closer look, you'll find that Abilis is a charity. Reading between the lines, Trump's nephew went to Abilis to get treatment for his son because Trump wouldn't pay for his medical insurance. Trump essentially threw the fate of his great nephew upon the kindness of strangers. And it's a non-answer to say that his nephew had ample resources.
How many billionaires, in the course of an inheritance dispute over millions of dollars, would stop paying the medical insurance for a great nephew with cerebral palsy who was obviously not part of the dispute? Donald Trump is one of those people. Donald Trump isn't just a sleazoid - he's a petty sleazoid who will stick it to a disabled great nephew over what, to him, is petty cash. I don't even want to know what he'll do to the complete strangers in the conservative movement he's supposedly pledged his allegiance to, when it suits his personal interests.