The genoisians were using a metal-like weapons against the Acklay all the time. Do you expect the Acklay to know that lightsabers can cut through ANYTHING when he only went against metal poles?
When the electro-poles ("metal-like weapons"😉 were swung/jabbed at the Acklay it flinched/showed signs of fear. Yet when Obi-Wan swung the lightsaber, which you say it'd recognize as an electro-pole, at it it didn't react.
Oh yeah, yes a LIGHTSABER, while the Reek got WTFpwned by One Blaster shot by Jango.
After damaging Jango's equipment, wtf pwning the Nexu, knocking down the same Obi-Wan that wtf pwns the Acklay and disarming Mace.
Like I said, the Reeks gonna slow down when the Agile Acklay side steps, then thats the opportunity to swipe him to his side, then repeatly stab him until he dies.
But that's never happen cause the Acklay's slower than the Reek. It took it longer to reach Obi-Wan's pole than it took the Reek to reach Anakin's pole. As if it'd have time to dodge and swipe the Reek at the same time. 😆