In our timeline, we still have billions if not trillions of years of potential technological life and -evolution ahead of us, until the last (dwarf) stars cease

In our timeline, we still have billions if not trillions of years of potential technological life and -evolution ahead of us, until the last (dwarf) stars cease existing, if not longer through other means, so I wouldn't rule anything out. Also, even if life did not causally begin in this universe through "external" influence like this, transmitted signals may potentially influence the future of life greatly nonetheless.