Tajik Islam is its own thing. They are (relatively) open and women are frequently seen in public. They can walk around on their own and they dont cover their heads with hijabs or similar. They are also very vary of foreign influences such as Arabic Islam, Turkish Islam and above all Taliban influences. The hijab is a staple in all of these forms of Islam, so banning it is essentialy telling those groups to stop trying to take over Tajik Islam. This is a good thing. It is protecting women from a shift to much more oppressing religious practices.