Songs within the same subgenre (in this case, kinda like progressive house/trance) and released so close to one another might use similar sample packs, which is why on the surface they
seem similar. After hearing both for a bit, I don't think Another Ambition drew any inspiration from Ferry Corsten. In fact, Ferry Corsten's track at 1:47 reminds me of the
Gerudo Valley theme from Ocarina of Time - I think they share a few chords in common. The little melody from Another surface's track is vastly different.
This is coming from someone who has no background in music. In my uneducated opinion, I think you're just imagining it.