he is a good prospect but you cant say people are special unless they get beat a good level opponent to prove it. Like Josh taylor's win against OD has cemented his statues as a special prospect, but OD on the other hand also looked very good then against his toughest opponent he got found out, there are countless example of this.
Yarde is early in his career and hasn't fought anybody of serious note that's correct -but there are just some fighters who you just know are special and he is one of them. Buglioni/Button are 2 win some, lose some solid domestic level fighters which is an achievement in itself but they will lose to Yarde and I would even tip Buatsi to take both our already.