I didn't make any claims, though I did express my OPINION once, which I doubt in the long run had any little effect on the conversation.
"those mail-in ballot are being counted had a steady Biden uptick"
It's different from state to state (or county to county), some states report all the ballots at once (total dems vs total republicans) while some report ballots one by one.
"It's very statistically unlikely reporting a lump sum would have a large number of ballots going in 100% one direction"
I believe sometimes they report all the Democrat ballots and then the Republican Ballots for a specific county, so first the democrats get updated and then the Republicans
Also, you have to link the specific article