Shane's current fate and the CDC sequence already demonstrate they aren't slavishly following the comics.
I don't think it shows anything more than what Darabont, Hurd, and Kirkman have said to expect: same roadmap, with detours. That's really all that either of those situations is. I expect Shane will ultimately die in the same manner as he did in the comics, and the CDC detour was exactly that - a perfect example of the "detour" phrase the producers keep using.
It comes down to a semantic matter of degrees, I suppose. It should be self-evident, from before the series even premiered, that
The Walking Dead on AMC as a long-form adaptation was never going to, in a literal sense, "slavishly" adapt
The Walking Dead published by Image Comics.