If it works and you know it, why not? They're still working on it, it's not going away any time soon, and just about everyone who knows JS knows jQuery. This is particularly true is JS is not the core of your application.
Should you write a SaaS SPA in nothing but HTML and jQuery? Probably not.
Should you write the entire application in React just because you want to have a nice fade out effect on alerts and notifications? Definitely not.
Should you write a SaaS SPA in nothing but HTML and jQuery? Probably not.
Should you write the entire application in React just because you want to have a nice fade out effect on alerts and notifications? Definitely not.