Yeah but we're not really talking about bronze ages or if a species can achieve comparable technology, but whether we can correctly detect intelligence, or even life, around us.
I don't think we should label dolphins as un-intelligent just because their physical environment doesn't allow them to smelt metal.
My point is - I'd like to avoid judging something as (not) alive or intelligent just because it is (or isn't) similar to our daily life.
That's a wrong way to think about it, since all modern "humanoids" are descended from the same ancestor not that long ago.
And if you consider dinosaurs humanoid, then so is that meme cat that can walk on its two back legs.
If there was an apex predator in every tree of life, in the "humanoid" shape, and I'm talking "humanoid ants" here, then it would be reasonable to assume that there's something beneficial in the "humanoid" shape that helps long-term survival.
And that's not even taking the majority of lifeforms into account - those in the seas, and greatly discounts birds. We still can't agree on if dolphins and crows are intelligent.
So, no, chances that the "humanoid" shape is somehow special out there are basically 0, since it's not even special here on Earth. We're an accident. Insects, mushrooms, plants - all those life forms are better adapted for mere survival than us (judging by cumulative mass of live organisms).
First we need to decide how intelligent are the dolphins, then let us look at the stars.
Every single life form on Earth today had exactly the same time to do its evolution in. Us, bats, dolphins, tapeworms, birch trees, amoeba, mushrooms, all of that had exactly the same chance(s) in the same time span.
And we don't even know if and how mushrooms and trees communicate, let alone if they "think", for our near-sighted definition of thoughts. We don't even know what to make of birds, e.g. crows, with respect to the size of their brains and what they can do.
Is our planet, taken as a whole, alive, in some form of the Gaia hypothesis? The correct answers as of this time are either "we don't know" or "it depends on the definition of alive."
That Star Trek trope of "everything in the Universe is just like us with different faces" really needs to be put to rest.
Even H.R. Giger was boring and unimaginative with regards to how he envisioned the Alien. That's clearly a creature influenced by Earth-ism - a quadruped, with a single head and mouth and a flexible spine and claws, it's basically a weird cat.