Why does the Indoraptor walk on all fours?

Why does the Indoraptor walk on all fours? The forelimbs of the Indoraptor are nearly as long as its hindlimbs, which enables it to stand, walk, and run on all fours.

The forelimbs of the Indoraptor are nearly as long as its hindlimbs, which enables it to stand, walk, and run on all fours.