Question about Khloe's Wondrous Tails level cap

Backthen when I updated my free trial to Endwalker complete edition, I was too focused on one job & reached lv 90 for the pertinent job. Then I realized that Khloe's WT became troublesome for me because they included higher leveled duties which are still inaccessible for me because I was still in Stormblood storyline at that time.

Now we're on Dawntrail & I'm glad that they "reset" WT (it becomes incredibly easy again), but I know that it will become harder when one of our jobs reaches level 100 & I don't want to make the same mistake as before. However my question is, does it count if one of my crafter or harvester jobs reach level 100 first? Will WT become harder if let's say my Alchemist reaches level 100, while none of my combat jobs have reached it?

Thanks!