SMN has all of the above and is one of the highest dps in the game. even assuming that you cancel dwt immediatly every time you have 20 seconds of free mobility every min from egi assault and ruin 4. Then you have the 20 odd seconds of firebird trance on top of that every other min. Then you could also not choose to cancel dwt immediatly and thats only an rdps loss when devotion is up so thats even more mobility. Then on top of all of that if you run out of absolutely everything, you still have ruin 2 which is a drop in the bucket in terms of a dps loss. SMN also has addle which is stupidly useful as pretty much all raidwides are magic damage which is only slightly worse than tactician on fights where the boss goes invuln, and better than tactician on bosses where the boss is targetable all the time because addle gets more uses out of a fight.
So comparing SMN to MCH:
1. Both mobile with very high uptime (Potentially no damage loss due to movement)
2. Both have raidwide mitigation
3. SMN has the ability to trade dps for extra survivability with titan
4. SMN also has a raidbuff which even without it they do more than mch so its just extra damage
5. SMN does more damage overall
6. SMN has a raise
7. SMN has an aoe regen (mostly fluff but still there)