You can go back 10 years and find that at least one of the top 5 players of every draft will have been picked after #25:
2013: Rudy Gobert
2014: Jokic, Jerami Grant
2015: Montrezl Harrell (this draft was terrible)
2016: Siakam, Dejuante Murray (plus Brogdan who while not Top 5 for the class, was Rookie of the Year)
2017: Kuzma, Dillon Brooks, Josh Hart and Derrick White are probably not Top 5 from this class, but all 4 are Top 10.
2018: Hard to tell who is top 5, but Brunson, Devonte Graham, Trent Jr., Robinson represents just a sick haul after 25.
2019: Poole, Porter