but I'm starting to believe that isolating a wallet on a separate computer with no internet access sounds best to me. Imagine downloading your printer's drivers and you find yourself with an empty wallet.
It seems that you finally woke up to the harsh reality! Isolating the computer with no internet access is DEFINITELY the best way to go. The more you will read up on the subject of how easy it is to lose Bitcoin, the more you will be convinced of this.
Not only will you find yourself with an empty wallet, but you may not even realize where the hell the malware came from. Back in the day before my paranoia, I would have never guessed my wallet can be emptied from what seems to be a legitimate driver.
I searched the company and it doesn't look sketchy, as it's stated on the article, they outsource their software to third companies, perhaps a malicious employee planted this malware, which shows how vulnerable we can become just through the smaller link in a chain (just how Coinbase got its data leaked).
It does not have to be a sketchy company. Google used to praise not doing evil, now they changed their mind. All sorts of people become criminals overnight and you would have never even guessed. The point of this paranoia is having a safe Bitcoin wallet that offers no head aches. Because why stress yourself out when you can live in a peace of mind?
Things can go very south even if you are usually very careful. It is enough to do ONE mistake and it can all be gone. You may be drunk one night and not realize you are clicking on the wrong website or download link. Why stress out, I rather be peaceful instead.