I don't think the characterization of this new boss as not 'way better animated' than the giants or as a 'ball' is accurate. For one, you may have missed the 2nd and 3rd phases aren't just spheres. And if you want, we can make a thread on silly ways of describing all the bosses of dst, starting with your example of klaus as 'angry santa' and fw as 'sentient skeleton', or the ancient guardian as 'rhino but round'.
Also I think we'd all be more open to taking your views more seriously if you wouldn't word your response as angrily, shouting insults and saying that your opinion is 'too true to just be your personal opinion'. And repeating over and over again that you don't like the boss isn't constructive criticism.