Ok, heres my 2 poishas
1) We should not downplay or forget what was carried out by Pak army no matter whether it is 35 or 350 years past the event
2) However, we should not hold a grudge against ordinary pakistanis, the Pak cricket team, or Pakistan as a country for that matter
The reason many Bengalis feel aggrieved is that unlike Germany in WW2, where they were forced to condemn the crime, some pakistanis still gloat over 1971 and "our boys teaching those backstabbing bengalis a good lesson". Thats why some of us still have an antipathy, its hard not to feel bad when some of them imply they will not regret such a thing occuring again if the situation so demanded.
That said, we should not hold a grudge against ordinary pakistanis who dont hold such a view. Its wrogn to paint them all with one brush.