Globally there was piracy to consider.
With Voyager, we had a choice of waiting 2 years for the episode to air free on TV, or renting 2 new unseen episodes on VHS for 7 dollars from a Blockbuster, and then two years later when the episode did air, the ratings sucked.
With Enterprise, we all had that one boffin with a computer, and his finger on the pulse, who would burn half a season onto a CD, and then we would circulate the episodes, and 3 years later when the Episodes began airing, no one would watch and the ratings sucked.
Of course, I was collecting Voyager and Enterprise as home made recordings on VHS, so the lag did not diminish my viewership, not that I was personally part of the equation that calculated ratings, but we were watching downloads of Enterprise Season 1, while TVNZ was still playing firstrun episodes of Voyager Season 6.
It's like they wanted us to be criminals.