Alright, I will give my voice to this.

The keypads where CONNECTED to props you blew up. We did not just place a keypad down to obstruct player mobility, nor, according you where you said you needed to crouch/jump to get by, I can confirm you this is not true, for I have went through several times without needing to jump or crouch. Our keypads where connected to props. which you have failed to show in the image given. We where not intending to use the keypads to slow you down, but for props we could take cover behind.