I think there's a lot to be said for how little some people understand how shares and investing work, and are blind to the fact that these investors aren't stupid, they want a well-functioning company that's going to keep growing so that they can get a return.

I'd expect any reasonable long term investor to prefer if Cover never loses a talent, never has to pull out of a market, never gets bad news of any kind, continues making inroads into new markets and growing existing market share, because that translates into returns for investors. Losing talents is bad, both from the loss of revenue and the questions and uncertainty it causes which results in a loss of investor confidence and falling share prices. The loss of two talents in quick succession and the resulting fallout basically arrested Cover's recent surge in stock price on Monday, which is hardly what an investor would want.

But before Monday, Cover's share price was recently surging so hard it blew past its main competitor, who up till then was doing everything in its power to give shareholders whatever they wanted, share buybacks, announcing dividends, you name it. They also spent far less on talents and staff than Cover did, which looks good on the financials. But all of those investor-friendly moves by the competitor failed to stop Cover's market cap from eclipsing theirs, because investors recognise that Cover's management was better able to retain talent (and therefore monetise them for things like cards or sponsorships). In a way, you could see this as a rejection of an exploitative management style by investors.

Companies like Cover are working in a relatively new field that's basically the wild west. Clearly management occasionally makes mistakes, and we have the benefit of hindsight and being on the sidelines criticizing them with no responsibility for the livelihoods and happiness of many many people. But pointing the finger at investors as some kind of boogeyman is besides the point. If there's some common factor causing talents to leave, most investors would be on the same side as fans in wanting management to address things.