@GokhanDBZfan
He didn't have any set expectations for the androids' powers then(like Trunks<<Androids)
He had... He expected the Androids to be at least > Trunks, since Trunks told to him so. How much is speculation. But he already expected them to be above Trunks:
Chapter: 335 (DBZ 141), P3.3-4
Goku: “For you, a Super Saiyan who instantly defeated Freeza and co., to call them monsters is really something…
Trunks “Yes…I’ve stood against them, but unfortunately…In any case, I’m up against two of them…
Even fighting one-on-one, I could barely manage to escape…”
Precisely for this reason I find his statement about the Artificial Humans making a big mistake to be BS, unless he thinks Goku improved so much that the Androids made a fatal mistake about not knowing the SSJs, and I'm sure that's not what you're seeing
He starts off the line with ''It seems that in the original history, we were supposed to be wiped out by you two androids''
So? It doesn't necessarily have to include all of them, specially when in the same phrase he opens the possibility of them "just growing too strong", when in the chapter 345, Piccolo said:
Chapter: 345 (DBZ 151), P6.6
Context: after Tenshinhan, Gohan, and Kuririn want to chase after No.20
Piccolo: “I understand…But don’t try and fight him. He’s not an opponent you guys could handle…”
Hell, the humans didn't even fight the Androids, which the closest of it was Yamcha being almost killed by 20.
He isn't doing anything than projecting his thoughts on what Trunks prophesied not coming true and brought up two basic explanations.
Piccolo was confused, implying that both are plausible. 20 is strong enough to where Piccolo thinks he might meet his expectations, but still weak enough to where Green Man isn't sure. Again, I don't think it would make sense he ponder the possibility of "they just being too strong" if he were any weaker than Mecha saga Trunks.
Heck, after they get they assess handed to them by the androids, Piccolo says this:
Chapter: 355 (DBZ 161), P6.5
Piccolo: “They’re stupendously strong…Too strong…I never thought they’d be so great…”
Yeah, the Androids far surpassed his expectations.
So he never had a set level of strength in mind.
Never said he had an exactly expected level in his head. But he had at least a notion about their enemy strength, which would be stronger than Mecha saga Trunks. Like I said, how much is anyone's guesses.
Like I've mentioned above, Piccolo didn't have any set expectations for the androids'
This is really not relevant to what we're discussing. He knew the Androids were stronger than Mecha saga Trunks, which is all that matters here. Like I said, I think Piccolo would be panicking initially if sick Goku was < Yardrat Goku, specially when it was made clear Goku had to train in order to hope to defeat these foes.