Actually most martingale are random entry.

All mine are trend following, so is terminator. Goblin is near random.
No body on here is making martingale signals counter trend. Not that I have seen. Wouldn't be logical.

Martingale only bust your account if you let it.

Also I know for a fact 8 pairs run by martingale will bust when they all get pyramiding orders open all at the same time. 3 pairs is pushing the limit even with small position.
All my opinions come from real account experience with martingale. Not theory.

Dave