I still think, we should honor the very beginnings in the same space. Also, in the context of OP, most of these names were once protected by trademarks, some may be even still alive. (I guess, FOCAL is now IP owned by HP?)

E.g., I didn't like seeing Simula reused (probably one of the most influential programming languages, since it introduced OO), or LiveScript (the original name of JavaScript that was a functional synonym for many years). And, regarding FOCAL, you've to start a quite specific search, already, for this showing up in Google top ranks, and this won't become any better, when there are other products by this name in the IT space. Especially, since there won't be much new pages on this and Google prefers newer entries.

(Regarding Java, you are probably aware of the concept of product domains in trademarks? Clearly, a computer programming language and a computer application are in the same domain.)

And I don't think there is any fault with expressing a perceived conflict early on, as compared to when it's already an established product and the conflict really plays out.