A fissure eruption typically occurs in basaltic terrain, where the magma is relatively fluid. Hawaii is a great example. Fissure eruptions occur along dilated fault zones. You show a picture of an andesitic unit. This magma has a much different chemistry than basalt, and is generally found in a different geologic terrain, like a convergent plate margin (Japan, South America.) Basalt might form a sill in certain conditions, but not a laccolith. Andesite and granite laccoliths are more common since these magmas are much more viscous/stiff.
Laccoliths almost by definition deform surrounding country rock, the degree to which they do this depends on the size and depth of the laccolith. If the magma from a laccolith reaches the surface it results in a dome or other volcanic ejecta. This portion of the magmma system would not be referred to as a laccolith. It has a root that is a laccolith, but the surface materials have other names.