POLL: Is something inherently lacking from a remake/remaster review if critic hasn't completed the original?

[Paatar]

Yes if you are looking to see differences from the old to the new. However, if a review is primarily comparing, you could argue that’s not really a review but more so of a comparison, when a review should be about the game as is. Not about it’s source material. 

No because it can easily create bias both ways, people over praising because they love the original so much and people being too harsh because they love the original too much.

Like everything, a healthy balance of all perspectives is what we need, not just one or the other.