The easy part of the discussion
I feel this article falls into the usual trap of dealing with a "Google will do this" rumor with a "after investigation, it makes sense, since they would benefit from the result".
Hell yes, and I would also benefit from building a more fuel efficient plane for my travels. But I don't.
Oh, and British Airways, as a buyer of planes, would REALLY benefit from creating a more fuel-efficient plane. But they don't.
Why is that already? Hmm, something like "they don't know how to do it/it's not their expertise/not their job" and "anything that can be done by BA can be done by Airbus and Boeing better, faster, cheaper" is coming to mind.
An article explaining to us that Google might do chips is pointless if it focuses on what it would gain from better chips.
The real question to address are OBVIOUSLY:
1- Does Google have the competences to do whatever part of the chipmaking this author wants to talk about?
2- IF they do, do they have either a need that the pros would not address (meaning probably that the market is too small to matter, ie only google would be interested), or a specific comparative advantage that makes them, non-pros, more efficient at doing this by themselves?
I'm not saying the answers aer necessarily "no".
I'm saying that by default, one has to think the answer would be "no", and that none of your readers has a clue.
And that it is precisely why that's the point the article should addres, rather than adopting the "they might do it, after all it would be useful" pose which brings absolutely nothing to the table.