We chosen to start with 11 locales that have more of 2% of installation of wordpress as written in:
We need to setup the infrastructure and see also the process so for us is difficult now to start with all the locales that we want on it (like yours).
Yes we want to support the same locales of WP to simplify the migration but we cannot do it right now but is on our plan.
Also for every locale we need a reviewer of the strings and without it we cannot add a new locale. So if you are interested on it let me know and I will add you in our list. We will give priority to the locales that are not the first 11 where we have people available 