In Particles used with verbs, Japanese grammar guide by Tae Kim:
Note that we cannot use the 「へ」 particle with verbs that have no physical direction. For example, the following is incorrect. • 医者へなる。 (Grammatically incorrect version of 「医者になる」.) This does not mean to say that 「へ」 cannot set out towards an abstract concept. In fact, because of the fuzzy directional meaning of this particle, the 「へ」 particle can also be used to talk about setting out towards certain future goals or expectations. • 勝ちへ向かう。 Go towards victory.
how is the first sentence going against what the writer says in the second part? isnt it setting out a future goal? thanks for the help in advance