His work ethic was fine.
People were left "wanting more" because he was a 3rd overall pick. Bonk played his arse off, he just wasn't an overly fast player. People looked at his foot speed and was like "he's not working hard enough", but dude was just slow. You could see his work ethic in just how good eh became defensively - guys without that kind of work ethic don't completely change their style of play, and abandon a lot of the offence-first hockey that got Bonk drafted so high in the first place.
He was considered the best pure player in the entire draft, and it really was a crazy set of circumstances (but most importantly: both Anaheim and Florida not wanting to deal with Bonk's agent, who they knew was going to play hardball) that we even had him slide to 3rd... but that was an awful, terrible draft class. Bonk was the biggest fish in a tiny, tiny pond.
That '94 draft was bad. Like, other than Ryan Smyth (6th overall), do you even take anyone else in the 1st round drafted after the 3rd overall pick over Bonk? Some noteworthy picks in the top-10 were guys like Jason Bonsignore, Jamie Storr and Brett Lindros. Wayne Primeau is, in retrospect, considered one of the ten best picks of the 1st round. I mean... bad draft is bad.
There's an argument to be made that Radek Bonk was the 2nd best player taken in the entire first round, after Smyth. That's... that's a bad draft.