If these ten devices are mere SKU updates, then maybe yes, they create a sliding five year support window (plus however long they're being sold), instead of a ten year one. Keeping software working for a five year old hardware platform sounds a lot easier than doing that for a ten year old one. A lot less Git branches also.

If the ten devices are mere SKU updates made solely for the reason of getting around the regulations, then the company can expect a rather huge fine :^)