Right, but often groups are extremely hostile to apostates because apostasy represents an existential threat towards the religion itself. This is why many religions require a formal shunning of apostates, if not explicit punishment. Talleyrand famously had a meal of ice wine and cold meat after being excommunicated in 1791 since good Christians were supposed to deny him “fire and water”; a cute anecdote at the time, but a potentially fatal prescription during medieval or ancient times.
Hearing about a benefit of apostasy, from members of ones former religion no less, is quite surprising.
Hinduism has no concept of apostasy. You are free to believe in as many gods as you wish (Atheism is a legitimate school in Hinduism), so changing which god your claim to believe in isn't a big deal.
The perceived threat is from the claim that all other gods are false, which is one of the major factors in the anti Muslim/anti Christian sentiments playing out currently in India.
However, the attitude of muslims & Christians towards nonbelievers, idol worship and the historical violence and destruction wrought on them plays a bigger role.
A modern western atheist might carry the same "all gods are false", the vast majority of the Hindus will not have any problem with that.
It might, but atheism, or strains of it, are pretty deeply rooted in Indian culture from at least the time of the Buddha, and not seen as much as external threats like Christianity or Islam. I'm a Hindu atheist, but my extended family is far less concerned with that than they would be if I converted to Christianity or Islam.
Hearing about a benefit of apostasy, from members of ones former religion no less, is quite surprising.