Can't say I've played Chrono, I was talking about mirage vs virt in my own experience.
Mirage spends a ton of time in I frames, and that and clones just feel safer than virt healing imo because not getting hit reduces all damage while life stealing through stuff just mitigates some of it.
Kiting also isn't always an option without pulling extra stuff or just not having the room. I never claimed to be an expert though so personal experience can vary.