The archetype match doesn't look right. Let me search for Goryo's Vengeance in Modern specifically.
Here are the numbers across 1,978 Modern Goryo Reanimator entries over the past year:
With Fallaji Archaeologist (268 entries, 13.5% adoption):
Wins: 595, Losses: 565, Draws: 46
Winrate (excl. draws): 51.3%
Without Fallaji Archaeologist (1,710 entries):
Wins: 3,846, Losses: 3,944, Draws: 338
Winrate (excl. draws): 49.4%
The data shows a modest but consistent edge for lists running Fallaji Archaeologist, roughly +1.9 points of winrate. The card is almost exclusively a maindeck piece when played, averaging 3.5 copies across 268 decks. That said, it is only in about 1 in 7 lists, so it is far from a universal inclusion - many pilots clearly prefer not to run it. The sample of lists with it is meaningfully smaller, so treat the gap as a directional signal rather than a definitive verdict, but the trend does favor including it.
Sources: Data from 1,978 Goryo Reanimator entries across 574 Modern tournaments (July 2025 - July 2026), 68.5% MTGO, 31.5% Melee.
https://www.mtgo.com/decklist/modern-last-chance-2026-07-1912847713
https://www.mtgo.com/decklist/modern-rc-super-qualifier-2026-07-1912847670
https://www.mtgo.com/decklist/modern-challenge-32-2026-07-1912847708