This has also been my experience. Enterprise systems really went all-in on Angular 1 for some reason (I personally suspect because it bridges reactive and MVC), and when it was time to move to a fully-reactive front-end framework, in my opinion Vue and Angular 1 are similar to each other in a way that React is not similar in relation to either of them or Angular 2+.
I still can't quite put my finger on why Angular 1 and Vue rhyme, though. It's common wisdom that "If you know Angular, you'll pick up Vue quickly", and it seems to be true, but nobody has ever explained to me why. Is it the state management? Reliance on viewmodels? How they're more complete systems out of the box and can be reasoned about holistically? Help a girl out, HN.