I think beginner corals and indestructible corals are not necessarily synonymous. I think best advice for a beginner is to decide what you want to keep and look for hardy specimens of those types coral.
It is very hard to get rid of some of the "beginner" coral if that is not what you want to keep long term and I have read many a thread for "beginner" regrets of adding some of those. So if you want to keep a Kenya tree or gsp long term, cool. But I don't really think that would be a blanket statement piece of advice. Could be a real headache in the long run.