  In this note, we study $1/4$- and $1/2$-BPS co-dimension two superconformal
defects in the $6d$ $\mathcal{N}=(2,0)$ $A_{N-1}$ SCFT at large $N$ using their
holographic descriptions as solutions of $11d$ supergravity. In this regime, we
are able to compute the defect contribution to the sphere entanglement entropy
and the change in the stress-energy tensor one-point function due to the
presence of the defect using holography. From these quantities, we are then
able to unambiguously compute the values for two of the twenty-nine total Weyl
anomaly coefficients that characterize $4d$ conformal defects in six and higher
dimensions. We are able to demonstrate the consistency of the supergravity
description of the defect theories with the average null energy condition on
the field theory side. For each class of defects that we consider, we also show
that the A-type Weyl anomaly coefficient is non-negative. Lastly, we uncover
and resolve a discrepancy between the on-shell action of the $7d$ $1/4$-BPS
domain wall solutions and that of their $11d$ uplift.
