The ML-degree conjecture for no-three-way interaction models

For $i\in\{0,\ldots,m-1\}$ and $j,k\in\{0,1\}$, let $C_m$ be the no-three-way interaction model with one $m$-ary variable and two binary variables, defined by

$$p_{ijk}=\operatorname{prob}(X=i,Y=j,Z=k)=a_{ij}b_{ik}c_{jk}.$$

Let $A_m$ be its associated configuration and $Q=\operatorname{conv}(A_m)$. ML-degree conjecture. The ML degree of $C_m$ is $2^m-1$. The source states this based on computations for $m\leq5$; the general formula remains unresolved there.