I think we need to be careful when we use the term "activists" when it comes to these types of issues.
"Shareholder activists" ("SA") can mean a lot of things. For example, SA can push to reduce CEO compensation. Or SA can demand that the company pay its workers more (usually with the idea that increased wages will lead to more long term profits). Or SA can demand that the company provide dividends instead of sitting on cash. And so on.
In this case, the SA is a hedge fund that promises investors returns well-above average. The interest of the SA is to make a large short-term profit, either through the adoption of this strategy, through increased volatility that leads to a scenario wherein the stock rises (a buyout by another company or a stock buyback, for example) or through getting "paid off."
That doesn't mean that the proposal doesn't necessarily have merit; but this isn't about the long-term viability or success of the company either in whole or in component parts.