You’re not comparing the worst practicals to what is considered one of the single worst CG renderings of all time though. There is also a camp culture that the Daleks fit in to - they weren’t trying to sell it as “very real” even at the time, that was “the look” and the budget. CG in live action is generally either shooting for 100% realism or is for comedic purposes intentionally absolutely awful. There’s a lot less in between than with practicals.