Hackers are very smart these days, the exchanges that don't have good security or protection mechanism can get hacked multiple times, that's why they were able to hack WazirX multiple times. I don't think anyone would ever want to use an exchange that got hacked many times, that's why Indian people can't trust WazirX anymore and they want a reliable and trustworthy option like Binance.
Since the technology is developing rapidly, hackers can have varied ways. If the exchanges don't improve the technology of their security, it is very reasonable that hackers can treat them multiple times. Well, I'm sure there are still people who use the WazirX. If there is no longer people using the WazirX, it must be closed soon.
The problem is not with the exchange, I would say. The people who keep trusting the same exchange even after the 2nd time do not deserve our empathy because they did it to themselves. They should have left an exchange like this the first time it got hacked and should have used the one with a lot of liquidity.
We can totally blame the users of exchanges. They may have no many choices, it may be one of the best exchanges in their country. However, I agree, it is better to stop using the exchanges if they look having no strong security system.