Legion legenderies took some time but they would drop eventually.
Yeah, legendaries were pretty terribad considering the dps increase for some like fire wrists was ridiculous compared to others, and let’s not even talk about how they refused to add a vendor till late.
Corruption is WORSE though.
You need the item to be corrupted
Then you need it to have a specific corrupted effect
then you also need it to have a specific tier 3 corruption level
Oh and you think you are done? With cloak resistance rising you are gonna need 2-3 of those to drop as well
So it is RNGRNGRNG that you also need to successfully get 2-3 times
Meanwhile swtor devs had the brain to add legendary aka tactical vendor since the first patch of the expansion