I think they were very good at their peak but they didn't have a better 2023 than Fnatic. You're conveniently leaving out that they were pretty mediocre for like the first 3-4 months and only barely even made it to Tokyo in the first place.
They weren't extremely close to beating Fnatic at Tokyo, that was one of the most dominant tournament performances by any team in Valorant history. Comparatively EG did actually lose a match against Paper Rex on their run to becoming champions and came close to losing against LOUD (3-2 victory including needing overtime on Ascent). Those two tournament runs are not comparable.
Fnatic only lost to 2 teams that entire season, Team Liquid (once, after beating them twice before that series) and LOUD (twice at champs, after beating them before in the LOCK//IN Final). They also only lost 13 maps all season: 6 against LOUD, 3 against Liquid, 1 against BBL, 1 against FUT, 1 against DRX and 1 against EG). Just as a comparison: EG lost 14 maps already before they got to the play offs for the Americas League, and ended the season losing 33 maps total and 11 series total.
The only thing EG has over Fnatic in 2023 is that they had a better record against LOUD (still not a winning record being 2-2 overall though) and the fact that they won Champs which is the biggest tournament (though again, I would say LOCK//IN + Masters is more impressive than just Champs).
I like EG, the run was a true fairytale moment, I loved their playstyle and they proved that they were one of the best teams in the world in 2023 by having two incredible performances back to back at the two biggest tournaments. I also think that the continued succes for most of the EG 2023 players (Boostio improved 100T a lot, Jawgemo was still frying on a heavily weakened EG, C0M made a deep run at Champs again) proves how much individual talent that squad had. However, saying Fnatic was better is not disrespect towards EG, it's just facts.