Not good. Stripe makes restrictions that PayPal allows (cannabis adjacent, adult adjacent) that Stripe blocks. Many vendors will be negatively impacted by Stripes morality police and selective application of their policies.
Why do people think this? Since when do giant corporations care about morals? As usual, everything is about money. You can be sure that part of the interest in a paypal acquisition is paypal's consumer wallet product which allows them to extend into lines of business that are currently constrained by Stripe's model.
As others have said, it's about perceived brand risk (V/MC allowed X terrible transaction to take place) and regulatory risk.