With likely very dire results, yes I think you should. If your mothers insurance rate goes up, since you got one of these dna tests for Christmas, she should be involved in the decision to publish this data in the first place.
What workarounds insurance companies come up with to circumvent the spirit of the law and how well it can be enforced will be interesting.
Also, I found out last time this discussion came up on HN that the law prevents it being used for regular insurance but does not apply to life insurance.
Insurance is highly regulated, insurance companies have specific legal ways to underwrite policies, the idea that life insurance companies are going to secretly use stolen data of uncertain provenance in their underwriting instead of just making you submit a dna sample is, quite frankly, silly.
If there's enough money to be made, I'm sure the Usual People will be persuaded to bend the law until it gives way.