I agree that the increased number of games dilutes interest after a certain point in the IPL! And the BCCI is moving towards lesser and lesser double headers (read a report recently that they're planning for it in 2023 where they'll have lesser double headers). But maybe the boredom sets in for us, the internet/social media warriors. Would be interesting to hear what the general Indian public (the monstrous engine that drives cricket's audience base as we speak) felt about this.
I know the well reputed teams didn't do well this season, but I still liked watching the lesser known guys make a splash this season and create new triumphs. Gujarat have been a total surprise and so have Lucknow been to a certain extent. It's almost a dream come true for the BCCI that the two new teams have hit the ground running in their very first season, both at the same time. This season actually made me watch more non-CSK games (due to the excitement of the two new teams and all the shuffles due to the mega auction and the hype of how X player would look when playing for his new team).
And this last point makes me more positively inclined to the idea of the mega auction atleast once every 5 years. I definitely think there needs to be the occasional 'reset' button and it can definitely be extended to 5 years (from the current setting of once every 3 years). I do though think that adding more new teams will be bad for the IPL. They've hit the ceiling and I cant see how the IPL can get more interesting with extra teams.