Running a VM is not necessary more secure than running a container. By definition VM allows to run an untrusted kernel code which makes exploiting curtain bugs

Running a VM is not necessary more secure than running a container. By definition VM allows to run an untrusted kernel code which makes exploiting curtain bugs more feasible. This is especially so with hardware bugs. What is fundamentally more secure is running applications inside a VM which is what Amazon is doing. The attacker then has to first exploit the kernel before trying to escape the hypervisor.