No. 35020 would be the old kit from the 1970s, of the Ausf. C — the one where the rear of the hull slopes outward at the top and inward at the bottom. The Ausf. D had a hull rear that slopes inward all the way from the top.
I get your point with what you're saying - they release a kit, then they put out a mk2, or (as I've noticed with the Protze) one towing a gun, with slightly different specs.
That’s what I meant to be wary of, yes: they add a towed gun, or a small sprue with some additional parts for a minor variant, or new figures, or something similar to what’s essentially a very old kit, and then call it a new one. The basic kit will still have the same (lack of) accuracy, of course. But then they sometimes also release a completely new kit of much the same subject, that’s far better detailed.