Why HTML 5 still have support for Presentational elements?

Question

See list here:

http://www.w3schools.com/html5/html5_reference.asp

like , ,
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Answer 1

They have also redefined the meaning and semantics of several of these elements. They realized the need for an element that does something like and there was already an element, so they kept it, and preserved backwards compatibility, instead of introducing something new.