Obfuscation isn't security. If exposing the existence of a device is compromising to you, then this doesn't solve the problem, it makes it less likely.

To which you might say "it makes us less likely to be compromised", which is probably your goal. So obfuscating network access probably makes sense to you. But I think it's dishonest to market this as "security". The door is still exactly as open as it would be if they were exposed. Security is fixing the problems that would be exploited