What is ideal deep link ratio?

All of my sites has deep link ratio of 99:1

99% index page , 1 % inner pages . That's because I prmote my index pages heavily.

Do you able to rank for your main kws with deep link ratio like mine?

I am wondering if Google will lower my serp ranks because of my deep link ratio.

So is ideal deep link ratio is important or over rated?.

Thx