T20 is essentially a baseball-type power-hitting format. In cricket, the skill set until now was the technique to bat and ball and perseverance. The Monet and fame have made few players stick with this format and ignore the longer format of the game.
Focus with T20 is entertainment, not skill set. Fancy hook shots and cheeky angles look good on TV viewers but do not do a bit to enhance the skill of playing cricket in a longer format of five days or even one day. The nuance of the game is always overlooked in T20
There is a tremendous financial difference between the T20 and domestic tournaments, which is the reason for the negligible crowds in domestic tournaments. Investment in traditional cricket infrastructure is now being used to benefit the T20 format, as the recent mushrooming of state-level T20 tournaments is being conducted like the Delhi Premium League.
On the other hand, T20 is bringing followers and new users. Engagement is at an all-time high, and profiles are also expanding in gender and age groups. This is benefiting cricket overall.
Young players have more opportunities in T20 than in traditional domestic tournaments. Scouts and Auction has made T20 a lookout for new talents and future superstars.
Fan engagement with high scores and a fast-paced game format is unmatched by other formats of games. This has helped the growth of cricket, despite competition from other sports.