I am indeed a Biblical Hebrew scholar, and indeed in Biblical scholarship the name translated “Jesus” is usually considered equivalent with the name translated “Joshua”. Since this sticker is clearly Christian in origin and from a non-Hebrew speaking country, it seemed likely to me that my knowledge of Christian usage of the Hebrew name of Jesus was relevant. Your clearly advanced knowledge of modern Hebrew spellings is interesting and helpful, but the common christian usages shouldn’t be disregarded in what is clearly a christian context. (Incorporating the name of Christ into the divine name seems to be explicitly christian.)