Indeed, if anything Voyager "started the trend" of short teasers. In fact, I can pinpoint exactly where that started, Scorpion Part 1, which just consisted of two Borg ships instantly getting blown apart.
I remember even the first time I saw that episode, pumped though I was because what I'd heard about the episode excited me, I was disappointed at such a short and insignificant teaser.
Unfortunately, Scorpion's teaser proved popular among fans, in fact I think it still ends up in the top ten of fans' favourite teasers which may have contributed to the teasers getting shorter in Voyager's run until finally Enterprise had completely meaningless teasers.
It wasn't actually Voyager. I remember reading in an interview with the writers that it was actually Brannon Braga who disliked long teasers. That's why it started on Voyager and continued through ENT.