Basically because if of the same level and civilization not unfavorite the game goes on, there are some games that can end in 2 ages, when unfavorite or when favorite but it doesn’t always happen, also the fact that the game is now more focused on the boom and on the passive game therefore there is no longer a tendency to fast and strong rushes and it must be said that India has received some nerfs and slowdowns compared to once so their rush is not as handsome as tad or early De.
It must be considered that except for the 11/10 rush (let’s say very all in) India is not handsome and fast for heavy rushes such as the Aztecs, Mexico, Ottomans, etc.
By itself India in 1v1 and team supremacy lacks nothing, it has every weapon to counter everything.
Perhaps you don’t find many games on De so you could try to find matches in the first period of De, I remember that some matches especially India vs Japan even at medium / high levels ended in 2 ages or you could try to find old matches of ep or tad at the time of gold as a comparison.