Array in an array

[Kernelpanic]

after copying and pasting this code into QB64 I have got an "OK" while I was expecting an Error Alert!

Why does QB64 compiler accept the declaration of array with variable as index delimiter?

The reason probably lies in this: A redimensioning takes place because the declaration of the array is not static. QBasic Manual Page 181:

"Dynamic arrays are always created if no constant value is given in the DIM statement - arrays declared as COMMON are also declared dynamically."

Static Arrays:
Const xyz = 100
Dim x(elements)
Dim p(10)
a! (2) = 3.1315 -> Array is implicitly declared static