I know better than going down this rabbit hole .... but I'm going to do it anyway:
% pressure is irrelevant to this discussion.
The stat compared Stroud to "all other QB's" under the same parameters.
No pressure Stroud is #2 out of the group.
Under Pressure Stroud is #32 out of the group.
The splits were very similar in NCAA where he had the largest split between pressure and non pressure stats of any QB in division 1.
Stands to reason why opposing DC's gameplan for just that reason.
This is the NFL - He's going to see a substantial amount of pressure. If he is to succeed, he cannot be 32nd while under pressure no matter what the numbers are without pressure.
Have you ever had a pressure cooker?
Actually, you don't need to have one, you certainly know what I'm talking about.
The more pressure, the easier for the lid to burst.
Humans are the same way, that's why there are terms like "relieving stress", "the bubble burst" etc.
In the long run, people (QBs)'s performance goes down as pressure increases.
You, yourself, had indulged in conversations like "the Texans ruined David Carr 'cause they didn't fix their Oline".
This article is long.
Are modern NFL QBs becoming "immune" to pressure?
www.milehighreport.com
But basically, it came to the conclusion at the end, the more pressure a team can put on the QB, the better outcome for that defense.
Here's another article on how pressure is important.
I already wrote earlier today about how a key stable of the core Dick LeBeau zone-blitz defense is the ability of the inside linebackers to have a diverse skill set that includes an aptitude for rushing the passer, and how it is imperative that the Pittsburgh Steelers continue to demonstrate...
steelersdepot.com
Or this article, where the coach says the more pressure a defender can generate, the more he can help his team win
A sack is a great play by a pass rusher, but that doesn't mean counting up every pass rusher's total number of sacks is the best way to determine who the best pass rusher in the NFL is.
www.nbcsports.com
Belichik also said things along those lines, that getting consistent pressure on the QB is more important than getting sacks.
If you disagree with the pros, I have nothing to say.
There's no rabbit hole here to dig.