Reloading the Type 10 tank

The other day I found a video where the reload of the Type 10 is not 4 seconds, but 2 seconds. I would like to get an explanation of why this is not the case in the game.
If someone says that this is not a justification for introducing such a thing, then I will ask that person to justify the reloading of British tanks in only 5 seconds when it requires the most action.

Balance reasons

Heya. Please use the bug report website if you want to report it’s reload rate, but do note that videos only won’t be accepted (due to possible things like editing and such)