Gargoyle
Adventurer
My response was originally to epochrpg's post in which he stated that a ranger's companion should be durable. The only way to get that sort of idea is if that had been the case in the past, otherwise we wouldn't have any notion of what animal companions should be like. Therefore, I responded by saying that the companions are just as tough as they have always been, countering his point. This is perfectly relevant to the OP's title "Can it survive for 2 rounds?" which, yes, indeed it can.
However, I note that you have not responded to any of the other points that I posted. Therefore, I have to assume you have nothing else to discuss, and wish to continue nitpicking for the sake of nitpicking. I will not respond to that again, so have a good day.
I have to agree with Jadrax, and feel that your points seem irrelevant to anyone who feels that an animal companion in 5e should be more durable. To someone interested in a viable animal companion in 5e it doesn't matter what was in earlier editions. What matters is how it works within 5e. If you're of the opinion that they are durable enough, that's fine, but the sole argument of "that's how it worked in the past" doesn't really fly, regardless of whether you think they're ok or not in 5e. I do think it is relevant to the thread; looking at older editions is part of the picture, but I don't think it's the most important thing.