It definitely can be. Privatization has become a shorthand way of describing the process of selling public or state assets to corporate interests for pennies on the dollar.
Legitimate privatization would mean returning control of those assets to those who were forced to pay for it (taxpayers) and/or to those who currently occupy it as workers.
This isn’t an area of much dispute amongst the factions of market anarchism, as both the left-libertarians and the anarcho-capitalists like Rothbard support syndicalist privatization for the most state-dependent of industries.
We market anarchists seek mutualization — not privatization; worker and taxpayer control — not corporate sweetheart deals.