I would not have made the trade either, but a top cover corner like Ramsey is absolutely considered a difference maker in today's NFL. It can be hard to keep up with league-wide trends, but the current thinking is that great coverage guys like Ramsey are more valuable than pass rushers because teams have figured out ways to neutralize pass rushers. (I'm guessing that might be news to Aaron Rodgers, Baker Mayfield and some other NFL QBs.)