For any of the patches you don’t like, you can delete and recreate using the manual “Skin Surface” in SpaceClaim. You can specify a lower number of “Samples” in the options of this tool to better walk over bumps and imperfections in the facetted mesh. But a lower sample number will also not fit as accurately. Try to find a number that gives the best balance to fit and fewer spikes.
However, if the issue is not surface roughness and imperfections, but the T points and star points you refer are just the boundary shapes, then the mesh defeature tolerance can merge across the thin ones as Aniket said. Just experiement with a defeature tolerance that works well for your model. Or right click on the "Model" in the Outline to insert "Virtual topology," and merge small faces to adjacent larger faces as Aniket also said.
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