Raghavsood previously reported, that the system you used to generate keys was connected to a network (the internet in this case).
This was information he received from your team:
Based on a discussion I had with the team separately earlier today, they opened the website on the computer, before removing the internet connection and generating the keys.
And yet you state:
Ofcourse, We always have used airgapped laptop/printer that we wipe after.
An air gapped system, by definition, should never be connected to an external network.
If you hadn't connected it to the internet, more than likely you wouldnt have used the walletgenerator website directly.
You would have downloaded the source code from github (which isnt malicious), loaded it onto a flash drive, then transferred it to the air gapped system.
It seems like you might have a different definition to what an air gapped system is?
It does not protect from all threats, but it limits the possible attack vectors when the system has never had direct contact with external networks.
It also means that all data transfers to and from the system are very intentional and should be scrutinized.