Bitwise operations on bitSlice

[AntonC9018]

I expected the following to be allowed:

auto a = bitSlice(x);
auto b = bitSlice(x);
a[] |= b[];

Iterating through individual bits and computing the bitwise operation one-by-one kinda ruins the whole idea of storing the bools as bits that these operations would be allowed.

[AntonC9018]

Maybe it's not part of what bitSlice are designed to do, but then why is assigning the whole range to some value allowed?