You have the problem of everyone wanting to fit everything into 3 neat boxes. Dominant, inc-dom, and recessive. Real life doesn’t work so neat sometimes. also think out of our classification system. We call everything dom, inc-dom or recessive compared to what we call normal. When compared to a pinstripe, normal is recessive. So don’t get hung up on classifications and just look at whats going on.
Heterozygous just means a mismatch pair of genes. Lesser is het, just extremely visual. Pastel is het but also extremely visual. However its not so visual when its a pastel super lesser. The same can be said about some we classify as recessive. Sure a het clown in some normals may or may not be obvious, but my pastel hypo pos het clown girl has such a pattern that is highlighted by the pastel hypo, id bet a lot of money to say she proves out. het pieds tend to show in some multi gene combos, you can see it in NERDs stuff for years.
basically it comes down to, its not always a simple as recessive or inc-dom, some are just visual enough sometimes to be identified but not enough other times. Sorta recessive, sorta inc-dom. Then piling on other morphs might highlight the sorta visual part of it also or mask it more.