Shock it may be a violation if over 250 volt but I have very little doubt it is bonded well enough if you have 28 current carrying conductors.

When you have multiple conductors you base the grounding on the single largest OCPD protecting the circuits. Not the collective total.

So what would that be.....a 20 amp breaker vs a 1 1/4" LB and chase?

One last thing is that if the fittings don't bit into the paint the paint should be removed.

Bob Badger
Construction & Maintenance Electrician
Massachusetts