Term for Negative Promotion

What is the term for speaking well of an object, by identifying the negative attributes it has. ie 'Product A is non-poisonous, odor-free and not expensive'. 'Bill does not smoke or gamble'


Solution 1:

The closest to that definition that I see is actually a pair of phrases, not a term:

'...damning with faint praise'

or

'...backhanded compliment'

Each is used as a way to infer that there's nothing good to be said; a form of criticism.