At least without an investigation. That's my point. There may be incriminating information, as your link shows. As for what else it shows, not much. Lutsenko knew he was going to get the boot because it was pretty obvious Poroshenko was going to lose based on the polls, which predicted the total blowout that did take place. It didn't take a pollster to tell that Ukrainians were sick of Poroshenko. Lutsenko was trying to ingratiate himself with the Americans right on the eve of the election by dangling information in hopes that he wouldn't have to produce anything until after the election.

Where, exactly, are you getting your assertions that the EU and the IMF were pushing for Shokin's ouster? I am not aware of any policy statements that came from either body recommending such a course of action. The only evidence of that comes from...Joe Biden, who apparently stated to reporters that the EU and IMF also wanted Shokin gone, and lower level Obama administration officials who repeated his position. Also, isn't it odd that they supposedly wanted to get rid of Shokin, but had no problems whatsoever that he was replaced by someone who was clearly not professionally competent enough to hold the job?

As for what Shokin was investigating, of course it didn't have to do with Hunter Biden. Hunter Biden was brought on to kill the ongoing investigation. It was a direct bribe to Joe. You seem to be confusing Shokin's investigation with what Trump was trying to do. Shokin's investigation is why Hunter was paid $83,000/month to do nothing. Kill the Zlochevsky investigations.

Lutsenko didn't follow up on that because he knew it would be political suicide to do so. However, when his protector, Poroshenko, was going to lose power (well, his real protector is Yulia Timoshenko, but she's been losing influence steadily and realized that she has to act behind the scenes because no one likes her; the US pretends that the corruption charges against her were manufactured, but they were likely real, just selectively applied to her and not to every other corrupt politician), he started trying to see if he could do something to hang on.