I concur that they are reasonably sentient, though different from humans.
Their physical capabilities obviate the need for many tools and eliminate necessity - as in "necessity is the mother of invention".
That said, they are hominids and share many basic behaviors; including social, stalking, hunting, foraging, etc. with us. When confronted with humans engaged in behaviors we share on the interspecies behavioral Venn diagram, they seem to understand quite clearly what we are about.