No, level the crafts without paying too much attention to the guild quests. The guild quests don't really give a lot in experience and won't make a huge contribution to the leveling process. I've never done them as I leveled. Though you will want to stop at 50 and go back and do them. The 50 tool is worth it and will make 50 to 53 much easier.
Do the 1, 5 and 15 because they give shards but after 15 just level with grind, Leve's, Grand Company turn in's and beast tribe. Stop at 50 and get the quest tool because they are very much worth it at 50 and improve your ability to level above 50 but not much in the Crafting Guild quests make leveling that much easier aside from the shards early and the tool at the end.