It's not just the G27 that suffers from bad force feedback. I fly helicopters with a FFB-joystick and currently the default FFB-profile is horrid. The FFB strength is much too light. Also, there's no way to adjust or disable it.

Upvoted this ticket to bring the issue up instead of making a new one.

This is something BI should have fixed since OFP. Maybe there's a technical reason for not implementing this, I don't know, but still it feels like a simple configuration tweak to do and important for the sake of realism.