They realized they weren't as helpless and incapable as men, implying that they didn't discover their full potential until the last century.
Some did; they were just oppressed into oblivion.
They were kept ignorant of the fact that they would be burned in case their husband dies? Even animals shy away from fire, and you think a human will willingly step into it? The practice of Sati is one of the crucial evidences pointing towards how women were treated in that era, and you cannot brush it aside by saying it happens "just once in a lifetime." It's not the life the just one woman, but every other women as a collective.Pre-British rule Indian society brainwashed women and kept them ignorant of their true potential for a long time. Pre-British rule Indian society did not consciously crush their spirit; because if it did then history would've recorded large movements that intended to liberate women.
Moreover, you are falling into Argument from Silence logical fallacy. Just because history hasn't recorded many such movements doesn't mean there weren't any. Kings and emperors ruled the world back then, and anyone going against the norm would just be crushed. The Bhakti movement and Sikhism as I said before are just some of the examples which have survived. Going through wiki, I also came across a few female saint-poets who were fighting for the cause of social justice and equality back then: Mirabai, Akka Mahadevi, and Lalleshwari. Most of these movements were part of reforming Hinduism, and not just fighting for the cause of gender equality; perhaps one of the main reasons why they're still widely known.
Ignorance is never a bliss, especially when you are part of the community that is being oppressed. The fact that the society expected and even forced the women to be ignorant shows how horrid the situation was. This is what dictators do to keep their subjects calm. That doesn't mean the subjects are leaving a blissful life. Women had less rights than men pre-independence era, not to mention various other atrocities that they were subjected to. That alone is evidence enough that they weren't better off than post-independence.In the modern world, women consciously lead their lives in a patriarchal society knowing fully well that they can never explore their capabilities; a heavier burden to shoulder compared to women from the past(pre-British rule era) who subconsciously conformed to society and did only what was required of them.