Java IDEs have historically been made by maintainers of the language.
Netbeans was a product acquired by Sun, Sun Forte was its "Professional" variant in Solaris, and Oracle still takes care of it in the context of Solaris and Oracle Linux.
Eclipse was a rewrite from Visual Age products, originall written in Smalltalk, by IBM, and IBM keeps being a Java vendor with their own implementations.
I do get the sentiment to some degree. Part of it is that Microsoft does have a conflict of interest as an OS vender. They do need to show that they aren't/won't be abusing that. That does put them in a position where they're asked to go above and beyond as a form of litmus test.
We dont do the same for java, rust, or c… there are good IDEs for each of them and none are made by the maintainers of the language.