Questions about chocobos in patch 2.3

[Alukah]

Well theoretically wouldnt u be able to master more than one additional tree since each rank gives more than one point? (rank 3 gives 3 points for example) so u could purchase more than one skill per level. Then again my chocobos only rank 4 so my understanding can be off.

Skill point requirement = skill points you earn.

At rank 7 you get 7 points, but rank 7 skills cost 7 points