How does this relate to localization, grammar, spelling or the translation from Japanese to English?

Most other MMORPGs do have this problem, actually. Tanks and healers are usually more in demand than DPS in any game because DPS are less responsibility for an average player. There are a lot of ways that this problem gets solved. Sometimes they allow you to enter and clear without a tank or a healer, they allow you to change role/spec, do the content at a higher gear level without syncing or they allow you to solo it (sometimes with NPCs).

Usually you will only queue for content when it is your first time. Once the MSQ and all side content has been completed for the first time, you just have roulettes and new content. If you are in a queue that lasts more than 40 minutes, it is likely that you are trying when most people in that server's region are sleeping or you are trying to queue for content that people don't queue for and use Party Finder for instead, such as extreme and savage.