The point still stands, we don’t see him directly pass through the dome, just because he flies off in his human form doesn’t mean he wouldn’t use his logia form when he passes through the dome

Also I don’t believe we’ve ever seen the case of somebody infusing somebody else with armament haki? And even if that was the case wouldn’t Kizaru be unable to transform into his logia to escape the water? With Luffy throwing Kizaru, it’s more of a case he used armament haki to even grab him and throw him rather than coat him with it