*zsh is also bloated
No, it's not.
It's much smaller and faster than bash.
As to your scripting in ash, it's the worst of two worlds: its lack of features will criple your scripts, without making them compatible with either the posix or the traditional bourne shell. Solaris'
And please stop repeating silly gnu-dissing that makes you feel part of a higher circle: the actual enhancement that 'caused' the shellshock vulnerability (functions as part of environment) was actually copied from plan9's rc, ie the result of the same kind of brainless plan9 snobbery like yours.