Doesn't surprise me, IME all Vivids are incredibly under rated, punch way above their price point. This is the most spot on review of the Spirits I've read compared to reference speakers 2+X the price. I've heard one of the comparison speakers and I'd rather have the Spirits.
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Main system
Digital source: Shunyata Hydra 2 w/AQ Tornado PC > iFi linear PSUs for TPlink router + Arris modem on Isoacosutics Gaia footers + Shunyata Venom eth. cables > HDPlex PSU -> OCX clock + EtherRegen -> Paul Hynes SR4T + HDPlex HD500 PSUs -> Custom Music PC w/JCAT XE nic, Squeezebox, Roon, Tidal / Qobuz | TotalDAC Live PSU + D1 Twelve DAC Mk II + d1-Streamer-Live
Analog source: Acoustic Signature Ascona TT | Kuzma 4 - point tonearm | Air Tight Opus One cart | Allnic H7000 phono preamp
Pre/amps: Audionet Stern preamp | Audionet Max mono blocks
Speakers: Vivid Audio Giya Spirits w/external xover in Porsche Midnight Blue | 4 JL Audio Fathom subs
Cabling: Echole / Kubala Sosna ICs /SCs, Audioquest Storm series PCs / Shunyata Eth. Cs
Isolation: Critical Mass CS2s -> components, Townshend Audio Seismic Podiums | Adona Altair reference + Minus K isolation platform for analog, Eris II rack for system
Infrastructure: Fully treated (absorption and diffusion) dedicated ~3500cu ft, room, 5x20A circuits
Office: Tuned Dell Optiplex PC with JCAT USB card + Acopian LPSU > Ayre QB9 DSD DAC > 2x Aiyima mono amps > Q Acoustics 3050 speakers and SVS 3000 micro sub, Cullen and Wireworld cables, fully treated