Of course they didn't deny it! If they did, they would be lying under oath. That they refused to cooperate and comply with rhe requests of the committee that oversees their agencies despite Muller not giving them the direction to do so and no executive privilege invoked is very telling. That and that they made sure to characterize their feelings over not being pressured at any point to do anything illegal, inappropriate, unethical, etc.
I am coming from the angle that ultimately, the main thing that is going to do in Trump will be built around obstruction....If it ever gets to that place. I think liberals are getting a bit too fantastical with a lot of this to begin with.
But impeachment is so broad and open-ended and the obstruction angle so publicly visible that it seems the charge, if it is ever made, will hinge heavily on that. So while them admitting to it being "pressure" would of been much bigger, just the existence and likely eventual acknowledgment of those asks improves that case.
But of course Coats and Rogers are obviously carrying water for Trump right now. And probably will continue to. And because of that, I find it odd that if those conversations didn't happen, that they wouldn't take the chance to drive in the knife on their falsity.