With many decades as a naval architect and marine engineer, I think that I would find a detailed crewing breakdown for the Makassar-class and LST 120 interesting. If you started adding a helicopter with aircrew to the LST, as was suggested, the 22 would grow. Even a small amount of automation would probably be cost effective at reducing the 121 in the higher crew cost Canadian environment. Also, there could be inconsistencies in who is being counted as “crew.” The devil is in the details with crewing.
IMHO, you want your amphibious ships to be as “military” as you can afford and a ship with a dock is handy. But something is better than nothing and Damen LSTs are certainly way better than nothing. You just have to be careful to not make a major mistake and end up with a ship that needs a lot of work to be satisfactory like HMNZS Canterbury.