I agree with you BKK out of all of the arrival points should be the most advanced. It seems they are not however, so I would say just for best practice, have a paper proof of everything. At least that’s what I believe I’ll do.
I totally understand the E-Visas are “new” although…. The DTV is about 1 year old now…. They still ask for it printed. I printed and laminated it and people thought I was doing extra lol but yet… here is the request directly from the Immigrations screen… 📺 and as for the TDAC , the PDF gets sent to you via email after completion