He wasn't very good. Certainly nobody to brag about beating.
Here are Fujita's peak rankings. Cans do not achieve something like that. Fujita was no can in early - mid 2000s, no theory.
It is simply a matter of education and knowledge about MMA history, wich some, especialy new fans simply do not have.
Fightsport - Stephen Quadors
Monday 12-25-2000
HEAVYWEIGHT (Over 200 lb/90 kg) Top Ten
1. (tie) Mark Coleman (USA)
1. (tie) Igor Vovchanchyn (Ukraine)
2. Randy Couture (USA)
3. (tie) Kevin Randleman (USA)
3. (tie) Pedro Rizzo (Brazil)
4. Kazuyuki Fujita (Japan) - Decision "win" over Gilbert Yvel. Stopped Ken Shamrock (Pride X). Shocked the world with a dominant victory over Kerr. Durable.
5. Heath Herring (USA)
6. Renato Babalu (Brazil)
7. Mark Kerr (USA)
8. Josh Barnett (USA)
9. Gilbert Yvel (Holland)
10. Pete Williams (USA)
https://web.archive.org/web/20010110062800/http://www.stephenquadros.com:80/FSN_NHB_Top_Ten.html
Fightersdestiny.com
May 30th, 2001
Heavyweight
200lbs+ Light Heavyweight
1st Tier
1. Mark Coleman
2. Kazuyuki Fujita
3. Igor Vovchanchin
4. Randy Couture
5. Victor Belfort
2nd Tier
6. Tra Telligman
7. Renato Sobral
8. Pedro Rizzo
9. Heath Herring
10. Gilbert Yvel
https://web.archive.org/web/20030207145009/http://www.fightersdestiny.com:80/rankings.htm
MMA Media Top 10
July 17, 2001
HEAVYWEIGHT 205 lbs. and up (93 kg and up)
1. Coleman, Mark 156
2. Couture, Randy 135
3. Vovchanchin, Igor 114
4. Rizzo, Pedro 111
5. Fujita, Kazuyuki 91
6. Nogueira, Rodrigo "Minotauro" 81
7. Herring, Heath 55
8. Kerr, Mark 40
9. Barnett, Josh 36
10. Telligman, Tra 30
https://web.archive.org/web/20010802063537/http://maxfighting.com/News/rankings.asp
MMA Writers Top 10 - ADCC MMA
January 2001
HEAVYWEIGHT
200 lbs and over
1. (2) Igor Vovchanchin (93) – Ukraine
2. (1) Mark Coleman (89) – USA
3. (3) Pedro Rizzo (67) – Brazil
4. (n/a) Randy Couture (63) - USA
5. Mark Kerr (104) – USA
6. (5) Kevin Randleman (28) – USA
7. (10)
Kazuyuki Fujita (24) – Japan
8. (7) Heath Herring (24) – USA
9. (9) Renato Babalu (19) – Brazil
10. (U) Pete Williams (14) – Japan
https://web.archive.org/web/20020106011322/http://news.adcombat.com/topten/topten0101.html