Lmao, no one is "offended".
And MS can of course market their console. The issue that people have is the wording that MS uses. They know they can get people (fanboys) riled up by using the word "full" in this context. They could've easily said "These are some of the features Xbox Series S/X use from RDNA2". Instead, they decided to feed fanboys by saying "only Xbox Series X/S have full RDNA2.".
It'd be like Sony claiming only the PS5 will give gamers instant load times or only the PS5 will give gamers immersive 3D Audio. They don't claim either. They do say the PS5 will give gamers both, though.
MS know what they're doing.
Sony knows what they are doing also.
They all know what they are doing...
We believe in generations...
No corporation is immune to this marketing spiel.