The equation everywhere is "the cost of the security is always too high because the failure of security is always an unusual situation and something that usually works and is cheaper will win in the marketplace."
Have we gone backwards.
Yes, expect more of this.
Yet... here we are. Entirely predictable.
The last one such event (also with blackouts) happened in 2011 and was generally called "1 in 10 years cold snap."[0]
Not weatherizing for 0.1% chance can be acceptable, not doing for 10% is not.
When IKEA introduced cloud devices, IKEA hardly a company known for high prices or using expensive stuff in their products, they had local fallbacks. Their product is competing with the reliability of less expensive devices controlled with a light switch. Locks are another case where if you reinvent the wheel and get significantly less reliability people will be mad.