I'd be surprised if it doesn't use TLS?
I'm certainly not saying it was someone at Google, but it would be a mistake to not consider them an adversary in the battle to secure your funds.
Claiming that someone at Google stole the funds is quite an extraordinary claim. You should have more proof than just the seed being sent to their spellchecker.
It certainly is an extraordinary claim, but there does come a point where the totality of evidence points to the likelihood of it. I'm not saying we're at that point, but in my mind we've reached the point of reasonably possible.
I saw someone in the parent comments mention that using your phrase on a machine connected to the internet can be risky... how can you make use of those coins then? Do you download some onto a usb to manually transfer over?