So this was after the 'baby Broncos' game against Wests? I don't recall 2010 being a particulalrly young side.
As a one off, the game against Cronulla came awfully close. However in terms of a general line-up across the season, I believe the 2010 Broncos were considered the bench-mark. I'll do a quick comparison for you, with both teams and the games they had played prior to the season.
2010 Brisbane Broncos
1. Josh Hoffman - 22 Years - 6 Games
2. Antonio Winterstein - 22 Years - 27 Games
3. Israel Folau - 21 Years - 71 Games
4. Alex Glenn - 22 Years - 26 Games
5. Jharal Yow Yeh - 21 Years - 14 Games
6. Darren Lockyer - 33 Years - 315 Games
7. Peter Wallace - 24 Years - 64 Games
8. Shane Tronc - 28 Years - 125 Games
9. Andrew McCullough - 20 Years - 29 Games
10. Nick Kenny - 28 Years - 67 Games
11. Sam Thaiday - 25 Years - 105 Games
12. Ben Te'o - 23 Years - 54 Games
13. Corey Parker - 28 Years - 193 Games
14. Ben Hunt - 20 Years - 2 Games
15. Matt Gillett - 22 Years - 0 Games
16. Mitchell Dodds - 21 Years - 0 Games
17. Scott Anderson - 24 Years - 28 Games
Average Age: 23.7 Years (24)
Total Games: 1126
2019 Brisbane Broncos
1. Darius Boyd - 32 Years - 292 Games
2. Corey Oates - 25 Years - 120 Games
3. Kotoni Staggs - 21 Years - 9 Games
4. Alex Glenn - 31 Years - 238 Games
5. Jamayne Isaako - 23 Years - 26 Games
6. Anthony Milford - 25 Years - 143 Games
7. Jake Turpin - 23 Years - 2 Games
8. Matt Lodge - 24 Years - 37 Games
9. Andrew McCullough - 29 Years - 236 Games
10. Payne Haas - 20 Years - 3 Games
11. David Fifita - 19 Years - 11 Games
12. Matt Gillett - 31 Years - 183 Games
13. Tevita Pangai Jr - 23 Years - 54 Games
14. James Segeyaro - 28 Years - 140 Games
15. Joe Ofahengaue - 24 Years - 70 Games
16. Patrick Carrigan - 21 Years - 0 Games
17. Thomas Flegler - 20 Years - 0 Games
Average Age: 24.64 (25)
Total Games: 1564
So not quite as inexperienced as back then.