Equal weightage is tough to manage, they'd rather have kept a flexible weightage range, like minimum 10-15% to ensure that something is distributed fairly.
Like the kotak multicap fund i've held since my early days which has been renamed a few times
As of now, only 1.5% in smallcaps and 22% in MC, the rest in LC.
A minimum holding of say 10%( or 15% ) in each cap would easily serve the purpose in a better way.
Later i realised that i'm better off managing a handful of them myself
and put some lumpsum in smallcap / midcap specific funds.
For eg. this year, MF are selling RIL as they cant have more than 10% single stock holding, so NS has outperformed all of them.
Momentum strategy not allowed in MF
what is not rising should be bought more.