I think this is quite likely, based on my experiences with other LED bulbs. It seems many companies make a line of a certain shape of LED bulbs, and whoever is labeling the packaging does not seem to be aware that the different color options have different lumen amounts. or perhaps they just label them all the same to make it less complicated
In terms of the distribution of light with these bulbs, it is quite nice. I cannot speak for the light quality or color, but the light distribution is good. I saw some of these bulbs in a Stockholm hotel lobby, looked quite decorative and nice. I would not use them as a main source of light, however.