There are so many ways they could implement the same thing.
K-mart could stop marking everything "on sale" 100% of the time and make the regular price the discounted price, so people don't feel like they're getting a good deal. Then their sales collapse and they go out of business, because consumers are robots with predictable emotions.
Or the board could look for the absolute worst CEO they can find, thinking to themselves "This guy will surely bankrupt the company if we give him control", and then have all the written documentation being reasons why he's a great CEO and put out press releases bragging about him.
If you look at executives loading up on put options and say "surely that proves intent", then they'll instead call up their old Harvard buddies at Goldman Sachs and tell them all the reasons the new CEO's going to be great. They'll take the hint and load up on puts on his behalf, then 10 years later give him a cushy job at the hedge fund.
Maybe they wouldn't do it to a successful company. But if a company starts declining, has a couple bad quarters... the executives start looking for an "exit strategy", and you just legalized a whole class of them if they accelerate the decline as long as it's too hard to prove intent.
If you try to ban specific examples and legalize the general principle, they'll spend years of their life arranging for companies to be bankrupted in ways that are hard to prove illegal. There'll be documented "good reasons" for everything, but despite that they will be millionaires and their companies failures.
You can't look at the most obvious case and say "we'll just ban that". It's not how these people work - they are reading the law and planning around the edge cases.