I frankly love silence when it is used. It makes a scene have a dramatic pause of shock and dismay at times, but in that OVA when Tai was waking Greymon, the silence made me frown.
I think the silence was good and appropriate but I wondered why it irked me so much. Then I realized why it irked me. I didn't feel any danger, no fear for Greymon, I just felt bored.
The american version, although it removes the silence, it makes you worry for Greymon with it's more intense music. Then the part when Tai waked Greymon was tense. The music was so uplifting, it was basically screaming "Get up Greymon!"
If you liked the soft orchestral themes, then that's alright. I only am stating my thoughts on the scene.
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On a note for the Japanese version, I really prefer "Our War Game"'s japanese score for the calmer moments.