No conspiracy here, they are just capitalizing on the phrase "cold wallet" which is strongly associated with "inpenetrable security" in the minds of users. Sadly, those users don't understand that cold wallet is not just some type of wallet, it's a practice that depends on the user. Generally phone security is better than desktop security, and with wallets built-in in the phone hardware it can become even better, but this doesn't mean that it's a good idea to hold all your coins on your phone, it should be used as a wallet for daily purchases.
I agree if there is any truth about the so-called cold wallet in new Samsung Galaxy it is only cheap trick to get more crypto oriented buyers. But we all know such wallet can not be in any way considered secured, and holding large amounts of coins in smarthphone with internet access is far from anything we can consider safe. In the case of a hacking of such wallet Samsung would only get negative PR, which would mean more harm than good for the company.
I can not agree with your statement that "Generally phone security is better than desktop security..." for a simple reason, today's users are not paying enough attention to their phones security, and if you read most of the articles who write on this topic - they say that AV on smartphone is not required / necessary. There is a belief that Google and Apple provide sufficient protection for their mobile OS, but why rely only on that if there is additional protection.
Here are some data from Q1 2018 by Kaspersky Lab
Notice : Link is scanned with https://www.virustotal.com and it is safe to visit.
