"IT'S A GAMES CONSOLE"
In other words, a post-sale change made by a manufacturer doesn't count because it is not something in which you are interested?
You say "SONY had the right to change it." That, my friend, is what is called begging the question - you are assuming the very point that is at issue. Naturally, if everybody agreed with you that SONY had that right, you would be entirely correct. But they don't, so you aren't. What you need to demonstrate, if you wish to be taken seriously, is some supporting evidence that SONY have the right to make such changes in the first place.
Of course this is all slightly off topic but, considering the timing (virtually contemporaneous) and the subject matter (ownership of intellectual property) it is hardly surprising that the matter has been raised.
I personally don't give a toss about OtherOS, even though I experimented with it. But I can see why people who DO give a toss about it are aggrieved and, at the moment, I think they are correct that SONY have been (at the very least) unfair. No wonder they are pleased to see SONY getting some 'karmic retribution'.