Coming from one of the few parts of the country where Japanese maples thrive, in the ground and partricularly in the artificial confines of a bonsai pot, I would normally agree with you. But this species seems like it ought to do better based on the info below, especially if is in a nursery pot, as it seems it might be from the photo.
"Scientific Name: Acer truncatum
"The Shantung Maple is a midsize ornamental tree that is great for small yards and it tolerates alkaline soils, drought, and strong wind. The Shantung Maple steps up to autumn with leaves that are gorgeous golden yellow flecked with red before they launch into orange. The Shantung Maple differentiates from other maples (Red Maple and Silver Maple) in that the canopy is denser and the leaves are more delicate, which is reminiscent of a Japanese maple but with much greater toughness (tolerates full sun). The Shantung Maple is designated as a Texas Superstar Tree by Texas A&M University."
Just out of curiosity, do these maples make good bonsai? I bought a few seedlings last year and this seems to be a very vigorous species. I read what Brent had to say about them, but have not seen any specimens out there.
I am growing one of these in the growing fields of my backyard, for 6 years now. I have high hopes for it, although it may not be the best for small bonsai. I have no idea how much the leaves and internodes will miniaturize. The leaves themselves are not too big, but I am concerned about the leaf stalks and internodes.
But we will see when it gets potted, in about 3 years.
Thanks for all the replies. I have been told that these make good(larger than shohin) bonsai. The leaves will reduce some and the internodes not as much. I am including a pic . I bought this from one of our members nursery. I do plan on removing the larger branch/growth and the smaller ones coming from the trunk.