I've had 0 issues using DBM to clear every tier while the content is current for years. There is always someone with BigWigs and always someone with DBM. Sometimes the timer for one boss mod is right and sometimes it's wrong. Meaning both BigWigs and DBM have their issues at times. No one boss mod is perfect.
Side note for weakdots: Yes, they are likely making triangle movement assuming they do it like most guilds do. We always use a specific order (10m - I could see it being a bit more annoying with more moving parts, but whatever). I put the person I'm going after on focus and I just have weakauras set up to know when my focus has Unstable Vita and when I have Unstable Vita.
The addon is wholly unnecessary for 10m. You have an entire 10s to react and get where you need to go. We just had a set order with every other person going to the same mark every time.
Ex.
order: a, b, c, d, e, f, g, h
blue: a, c, e, g
green: b, d, f, h
starts at d
d goes to green
d calls e
e goes to blue
Vita jumps from d to e
d goes back to the middle
e calls f
f goes to green
Vita jumps from e to f
e goes back to the middle
f calls g
g goes to blue
etc.