The weirdest thing about AOTC is how it starts off with a fairly interesting mystery of “who tried to kill Queen Amidala?” The assassination mystery was a nice hook to grab audience interest and kick off the plot. But bizarrely, the mystery sort of just fizzles out, and ends up mostly forgotten by the characters after Act I. The mystery is eventually resolved in such an incidental and anti-climactic way (during a brief conversation between Dooku and Nute Gunray on Geonosis) that I didn’t even notice it the first time I saw AOTC. It turns out Nute Gunray wanted Padme dead for some unexplained reason, I guess as simple revenge for the events in Phantom Menace. So Padme’s attempted assassination had nothing to do with her opposition to the creation of an army for the Republic - indeed it had nothing at all to do with the main plot of AOTC. It’s also weird that Nute Gunray, who has all the resources of the Trade Federation at his disposal, needs to ask Count Dooku to hire some assassin to kill Amidala.
Also, given that Count Dooku is “in the know” concerning Palpatine’s secret plan to start a war, it would have made more sense (and been more relevant to the plot) if Dooku himself was solely behind the assassination, since he wanted to make sure the Republic ended up with an army, and Padme could potentially have decreased the chances of that happening. It would also be somewhat of an ironic twist, since the audience would be inclined to suspect that some pro-army faction of the Republic was behind the assassination attempt. The audience shouldn’t suspect the Separatists, since the Separatists should ostensibly be aligned with Padme’s goal of preventing the creation of an army for the Republic. Then again, the whole Republic/Separatist conflict itself is so poorly fleshed out that the audience probably barely has any idea what’s going on anyway.