Holding pools have been there since 2012 when they had a huge training delays. Back then it was 6 months from arrival in Doha to finish your type training.
In General, Qatar Airways has one of the most efficient Departments for taking care of documents needs. But remember they have to deal with Qatar Customs and Border to handle all the requests, which can be backed up, especially during Ramadan.
Now that Ramadan is approaching just remember, nothing happens fast here in Doha, so just chill and wait until things happen. I know you are not in Doha yet, but the attitude is just wait, you are getting paid anyways, so don't complain or try to push your case, things will happen when they happen, enjoy your salary.