Which would have more people upset? Warp Drive fast enough to get them outside the Galaxy in such a short period of time (As in TOS)...
Such two-dimensional thinking... Do you believe the galaxy is spherical, or a flat spiral? In which direction is it stated that the Enterprise was traveling? Is the barrier only around the edge? Or the entire galaxy - above, below and around? Think about it.
The Star Trek Star Charts
tried that, but it's inconsistant with TOS itself, where their location at the rim of the galaxy is explicitly stated.
Besides, if it were across the top or bottom of the galaxy, it wouldn't appear as a horizontal band, would it?
Besides besides, Voyager's much slower warp speeds were already forgotten in "Broken Bow", the very first post-Voyager episode of Trek!