In short no.
The Nbl will be known for where young nba prospects can go to prove they can play nba, same can be said for imports, coaches, management etc. Basically be what the Spurs were in the nba of having that 'oh you were there, that means you can definitely contribute for us' factor.
In regards to the players it depends how you look at it. Yes the nbl can do there little Instagram post of ‘8 players with nbl experience in the boomers’ but:
Mills was here for a cup of coffee
Ingles has been here in ages
Delly and Reath have signed but never have actually played
Sobey looked out of his depth
Goulding while played wasn’t doing a lot but still he was a rotation guy who did contribute
Kay was in the nbl previously besides last year but I guess you claim that he had majority of his development take place here
Landale has said numerous times that he only came to the nbl due to the covid situation in Europe, the nba being reluctant to take new foreign players with covid going on, he also said he wanted a full contract, meaning he could’ve done a magnay and play in some games. It was just a matter of he needed to play somewhere and he was already above the nbl considering he was a starter for all but one game at the wc.
Thybulle, Green, Exum and Baynes haven’t played in the nbl
So if I was the nbl being honest I’d really only claim Goulding, Kay and try Landale but in reality they want the best press, marketing etc so they’ll say ‘8 of the boomers have nbl experience’ which even that isn’t true as it’d be 6 actually.