  Recent experiments discovered fractional Chern insulator states at zero
magnetic field in twisted bilayer MoTe$_2$ [C23,Z23] and WSe$_2$ [MD23]. In
this article, we study the MacDonald Hamiltonian for twisted transition metal
dichalcogenides (TMDs) and analyze the low-lying spectrum in TMDs in the limit
of small twisting angles. Unlike in twisted bilayer graphene Hamiltonians, we
show that TMDs do not exhibit flat bands. The flatness in TMDs for small
twisting angles is due to spatial confinement by a matrix-valued potential. We
show that by generalizing semiclassical techniques developed by Simon [Si83]
and Helffer-Sj\"ostrand [HS84] to matrix-valued potentials, there exists a wide
range of model parameters such that the low-lying bands are of exponentially
small width in the twisting angle, topologically trivial, and obey a harmonic
oscillator-type spacing with explicit parameters.
