This year's A Knight's Tale?

Rating: 4/10 (2 April 2018)

The early 8.3 IMDb rating--and the rapid drop to 7.2 (so far)--reminds me of what happened with A Knight's Tale (2001). That one started with an 8+ rating and had a bunch of glowing critics' comments on the poster, so I dragged a friend to see it.
Turns out A Knight's Tale was a silly dumb comedy, about in the same league as Airplane II (the sequel, not the original, which was fairly inventive and still remains very quotable). I scratched my head for a while, until learning that the studio got caught hiring a fake critic to write up a fake adulatory review. Apparently it was monkey see, monkey do with the "top critics," who all sang the praises for this "innovatively charming" and "brilliantly irreverent" film. With actors like Heath Ledger and Paul Bettany, it couldn't stink too much, but it was such an intentional goofball flick, an 8+ rating just did not make sense. Over the years, the rating for AKT has steadily dropped to a more reasonable 6.9.
Is Annihilation another case of rigged reviews skewing the rating process, or at least of monkey see, monkey do? More relevant is how far its IMDb rating will drop, as the unbiased honesty of real viewers increasingly outweighs the misguided early reviews of "professional critics?"
I'd say this visually stimulating but logically gapped product is comparable to an M. Night Shyamalan flick of the past 10 years (post-The Village), meaning somewhere between 5.0 and 6.0. But my guess is it won't get watched enough or long enough to drop to its natural true rating. So maybe it'll flatten out and stay at a moderately overrated 6.6 forever. But who cares?