Why is there literally only 2-3 texts btw Heard & her assistant Savannah and only a single text btw AH & her publicist 2 important ppl who should have seen more

It’s really surprising how there’s 0 texts btw AH & savannah like from the beginning expect on 21st May even though she was an eye witness to abuse as early as 2014 even before her own sister ?? And who was her 2nd assistant once Kate was fired ?? We got so many texts btw Depp & his assistants in contrast throughout the relationship …also there’s seems to be less texts btw the Heard sisters too