Dots realistically need around a 20-30% buff to be viable again. You'll noticed even the 15% boost to dot dmg right now with necro doesn't do anything significant to dots and is really bad outside of vamp drain on magcro. Also stuff like bleeds with master axes were gutted so even if they get a higher tooltip because they have some sort of weird scaling mechanism they opponent would need super high resistances to actually get the full tooltip damage making master dw trash now compared to slotting something like blackrose.
Just to elaborate on bleeds now and why they are garbage, realistically any good player isn't really stacking resistances outside of the nord racials, defending back bar and bloodspawn proc, but % mitigation modifiers such as major/minor protection (30%/8%) random skills like nb grim focus necro spirit mender (10%) swift set (10%) the new really good "potatoes" set (5%). Bleeds for whatever reason only do full damage as around 25k resistances which is heavy armor with armor buff up and then some. Most people are in medium/light for the damage which keeps them generally lower then 25k resistances and using some combo of the % dmg mitigation which lowers the already not dealing max dmg bleeds by a lot, that combined with high wep dmg/max mag makes it very easy to heal through and apply next to 0 pressure.
Carve the skill that used to give minor heroism but was taken away to increase the tooltip on the dot of the skill when the skill was reworked, got nerfed so not only does it have a lower tooltip then when the skill originally needed a buff cause the dot was already very poor it doesn't even have minor heroism buff attached making the skill even more useless outside a few niche things. Twin slashes both has terrible tooltips that require the super high resistances todo the total tooltip dmg.
The generally bad players who do stack resistances that are well over 25k and usually spamming vamp drain are in a zerg so the bleed is getting healed through by healers or purged. Thus zos ruined a perfectly good mechanic that was implemented well due to L2P complaints on top of removing all sources of defile among many other things and people wonder why we are having a tank meta.