Typescript what is the need for ember ts:clean in postpublish/postpack?

[brisk crater]

I understand the need for ember ts:precompile. But why ember ts:clean in a post publish? It just forces me to compile my TS again, but why?

Are there some consequences to removing postpublish/postpack (I can't think of any personally)?

Closests I could find to an explaination was this, but that really just goes into precompile (as far as I can understand)

Thanks in advance!

[worthy iron]

ts:clean removes a bunch of artifacts that are generated that you don't want in your repo