My biggest issue with Pearce is that he hasn't evolved his game one iota despite his experience. A player like Benji adapted his game as he got older, focusing less on the fancy footwork and more on the ball playing control and creativity. Cronk won the Roosters a Grand Final just by knowing how to get the best out of all the other players in the team, without really even doing anything special himself.
Pearce has spent his entire career running around looking rushed and confused, taking poor options, grubbering into legs or over the dead ball line, putting up end-over-end chip bombs that are easy to catch and don't give the chasers a chance to contest for the ball, and generally panicking rather than slowing things down and taking sensible options.
He's got zero composure and it's probably the worst trait you can have in a halfback. But this isn't a form issue or a situation where he needs "help" from his other half. That's the stuff you say about young, inexperienced halves. He's at that age where all the downsides to his effort game are only getting worse.