Evil otherworldly creatures like Dog Demons, if not summoned and invited, find it hard to penetrate the Material Plane on their own, especially in Toril.
Toril, though part of the Multiverse, has its Crystal Barrier sealed by the deities, making planar travel a relatively arduous affair, especially for evil otherworldly creatures.
For those power-seekers, this situation indeed poses many inconveniences.
But for most common residents, the benefits outweigh the drawbacks; they aren't faced with the majority of monsters and devils from across the Multiverse.
"If you play dead again, believe it or not, I'll give you another bath with Holy Water. What's left might be less effective, but it's still enough for the likes of you now," Gaven huffed coldly.
He completely ignored the Maiden Priestess beside him, casting a grievous look his way.