If we ask Hindu practitioners, they know that things are impermanent. Their talk about it is available quite wide in YOutube. They know things are coming and going. When they meditate, they meditate single pointedly. They use this knowledge coming and going to stabilize their meditation as well. In this case, they have a little bit of vipassana according to Buddhist perspective, but this vipassana is a very very course vipassana. They don't call it vipassana, because this is Buddhist term as shown by Ajahn Bhram.
The irony is although they know things are impermanent, they Still believe in God as a creator.
In this sense, their meditation fail to see the non existence of God as a creator. The question then is your ability simply knowing things are coming and going is the actual vipassana? How can your end result is completely different with Buddhism?
Buddhism is different, the vipassana is so deep, until the practitioner can see through directly that because things are impermanent, we cannot have an identity. The current identity is wipe out by the next new identity. In other words, we cannot have identity. So God as a creator, who exists as an identity free from causes and condition, is proven cannot exist at all.
This is vipassana. They can see the true face of whatever things appear to them as what it is, without being spoilt by their concepts.
We cannot do a vipassana without Samantha. This is sure.
But we can do Samantha without vipassana? If this is not possible, how can Hindu practitioners keep believing God as a creator? Is their ability to calm their meditation through a bit of wisdom knowing impermanent fulfilled the criteria to be called Vipassana? If we said they have a vipassana, then how can they attach to their meditation sensation? What kind of vipassana you are doing? Is that really vipassana?
May be yes, may be no. I think the disputes are there, depending on how we define that Buddhist jargon.
I am not here nor there.
I am not right nor wrong.
I do not exist neither non-exist.
I am not I nor non-I.
I am not in samsara nor nirvana.
To All Buddhas, I bow down for the teaching of emptiness. Thank You!