Redstone Block Activates Piston Despite 1 Block Gap

Redstone Block Activates Piston Despite 1 Block Gap

What I expected to happen was...:
The Redstone Block wouldn't activate the Piston

What actually happened was...:
The Redstone Block activated the Piston

Steps to Reproduce:
1. Place a Redstone Block 3 blocks high so there is a 2 block gap from the ground
2. Place a piston in any direction except up