To be complete, that conclusion comes right after:
So, Ferrari - if truthful - acknowledges the advantages of blood doping, but said that that small amount of doping could have been replaced by altitude training.
What he failed to realize/admit is that Armstrong continued blood doping during the Tour (see e.g. Ashenden's analysis), which naturally could not have been replaced by altitude training, for he couldn't have left for weeks during the Tour.
Note also the end on cyclingnews:
Too funny.
Summarized here:
http://www.cyclingnews.com/news/ferrari-armstrong-could-have-reached-the-same-level-without-doping/or here:
https://www.velonews.com/2013/01/news/must-read-ferrari-says-armstrong-would-have-won-tour-without-epo_272569