What he's saying is that they are not the lineaged SM's, based on color and growth. Those look like the maricultured montis coming out of Bali (I've got some of those, as well). Side by side, you can easily see the difference. That's not saying what you've got isn't nice, but the lineage naming can be a touchy subject (means different things to different people-somethign just don't compare, while others seem just as good or better than the lineaged counterpart)).
The second pic is actually looking more like one of the maricultured rainbows (hints of orange and green in the polyps on the right edge of it). When I got mine, I ended up with a maricultured of each the 'pokerstar', 'superman', and 'wonder woman' montis. IMO, the pokerstar and rainbow are the same. Mine came in with green polyps, but quickly turned to rainbow colors to my delight. The mari rainbow I have will stand up to any other rainbows I've seen, but I haven't had either of the mari SM's look like the lineaged SM. The first mari SM I got is really starting to color up in the growth edges, but has developed a few intermixed green polyps along the colony. I'm wondering it the polyps will continue changing colors.
The pieces are becoming more common because of the mariculturing. They usually come in around 2-3", but either get hacked up, or are eaten with nudis and don't make it very long. They grow pretty quick once they get going, though. The lineaged SM is a much slower grower for me than the mari SM's, etc.