I have no worries about my DTV. Applied while I was home in Los Angles with 100% verified paperwork and taxes.
I guess my only issue was a post I saw where if you apply for a 6mo extension inside Thailand, that immigration wants you to provide almost the full paperwork flow and bank balance info.
I don’t just park $15k cash liquid in my account and I guess I would rather leave and return, then go through all that plus $1900 bht.