New theory: One of the devs is dating Olaf
There's certainly stuff I would change about 9.24, but broadly it seems like they tweaked just about everything that was a common complaint (except Glacial) at least a little... and then there's Olaf, who had had the distinction of being the only thing every player complained about in 9.23.
Glacial escaped nerfs and Berserker got a bonus that will only have impact for an attack-speed Berserker, of which Olaf is the only prominent example. Does anyone have an idea of why this makes sense, or should I stick with my theory that Olaf is modeled after the Significant Other of one of the devs?