Interrupting Animations

Why must be sequence Intervals seperated?

For example; if I use such as following:
Anim "Stand" {
Interval { 333, 1333 },
MinimumExtent { -185.245, -148.439, -16.7884 },
MaximumExtent { 87.9669, 148.538, 50.507 },
BoundsRadius 181.727,
}
Anim "Stand - 2" {
Interval { 1333, 3333 },
MinimumExtent { -185.245, -148.439, -16.7884 },
MaximumExtent { 87.9669, 148.538, 50.507 },
BoundsRadius 181.727,
}
... e.t.c.

If doing so, the model would not perform animations correctly (the'd skip somehow) if it had been placed on the terrain in Warcraft Map Editor.

The correct way seems to be sepsrated intervals, namely.
Anim "Stand" {
Interval { 333, 1333 },
MinimumExtent { -185.245, -148.439, -16.7884 },
MaximumExtent { 87.9669, 148.538, 50.507 },
BoundsRadius 181.727,
}
Anim "Stand - 2" {
Interval { 1334, 3333 },
MinimumExtent { -185.245, -148.439, -16.7884 },
MaximumExtent { 87.9669, 148.538, 50.507 },
BoundsRadius 181.727,
}
...

I think it's because you can't have two keys on the same frame.