I'm not sure if you're serious or not, but that article doesn't actually list a single security issue with the Apple Watch.
1. says people will be looking hard for vulnerabilities. Agreed.
2. points out that network communications have been hacked in the past. True.
3. points out that the data companies collect has not always been properly secured in the past. Agreed.
4. suggests that wireless network communications cannot be secured in a reasonable way. (Which is FUD -- unless you consider it reasonable to connect to an unknown network or device and then doing your online banking.)
5. says stolen credit cards could be used with Apple Pay, and Apple Pay can be used with Apple Watch. True.
6. again points out that Apple Pay does not solve the problem of stolen credit cards.
7. actually points out how tokenized payment systems like Apple Pay are more secure than ones that aren't tokenized.
8. vaguely suggests that Apple pay may not be 100% secure, that once unlocked for a specific payment, a charge can be made. (However, the person quoted either doesn't understand Apple Pay or was not talking specifically about it because NFC terminals, rouge or not, have no way to "slurp unauthorized payments".)
But not one of these are Apple Watch security issues. None of these are even problems with Apple Pay or the iPhone, but are rather preexisting problems that Apple Pay and the iPhone don't happen to solve.
I guess I'm still waiting to hear what the Apple Watch security issues are.