Glad you received your replacements. Without going into too much detail, its not correct to imply that the replacement package was sent "in bubble wrap again". Our packaging for non-stealth shipping has been completely revamped - at 3x the cost of the former method. The new packaging does not go through letter rollers, because they are packages, not letters. Which is why your replacements were received in perfect condition.
We are continually evaluating packaging and shipping techniques to meet our customer needs. But those needs vary - some prefer tamper-proof branded hard cases, others want straws packed stealthily with no identifying visuals. We try to accommodate all while keeping shipping costs to the bare minimum, so that we can offer items like our $1 mixes.