A number of EU countries (Netherlands, Ireland and Finland, IIRC) have already unilaterally done away with 1c and 2c coins. They're still legal tender, but all prices/sums are rounded to the nearest 5c so they're not necessary.
And yes with 1 product it is still relatively easy (provided you put effort) but the more you buy in the grocery store the less oversight you get.
Instead, the product should be good on its own merit; so for me its an orange flag (or rather: proper, informative rounding is a green flag).
We see it elsewhere too. 199 instead of 200. 999 instead of 1000. Etc.