No it wouldn't. That would make Rez too powerful & unbalanced all over again. In fact, before the GOOD nerfs, she had the instant rez, that could be used twice, or even three times in a row. That was complete bullshit.
The way her Rez is now, is fair & balanced. In fact, she has two instant rezzes on her ult, which is fair, because the ult is the only time the rez is instant.