I'm going to call bullshit on that. They likely had stock on-hand that they purchased before the tariffs.
I have a hardware startup (parts imported from China, assembled on-shore), and I guarantee you that my customers are paying for every cent of the tariffs that make my product cost ~30% to 100% more (depending on the whims of an imbecile). No way am I paying it. I can't afford it. The parts cost what they cost, and there simply is no alternative part that can be purchased locally. If my customers can't swallow the extra cost, then I have less customers, which hurts my small business. If you were my customer, you would be paying for the tariffs.
I know several who do exactly that.