How bad is the grind in 2.28 really?

Just doing once per day rewards content you can get the following:

Duty Roulette (Expert): 80 Soldiery, 50 Mythology, and a Mysterious Map
Duty Roulette (High Level): 20 Soldiery, 100 Mythology (30/120 if you don't get AK or WP)
Duty Roulette (Low Level): 5 Soldiery, 100 Mythology
Duty Roulette (Main Scenario): 100 Mythology
Duty Roulette (Trials): 10 Soldiery, 70 Mythology (14/80 if you get ARR:Hydra/ARR:Chimera/BotBB and 16+/85 if you get a HM Primal/Thornemarch)
Beast Tribe Dailies: 42 Mythology (6 tier 2 quests)

These guarantee that you can get between 462 Mythology and 515 Mythology per day, 115 to 131 Soldiery and 1 Mysterious Map.

Just doing these and successfully opening every chest you should get all the Alexandrite you need for a Novus weapon in 48 days.

Considering that it is only day 3 of the patch, people seem incredibly impatient.