Yes, in order to keep the characters the same age (Lisa 8, Bart 10, Homer...in his mid-thirties, I think?) they have to keep retrofitting how long ago events occurred. So "six years ago" I guess meant six years ago from now, which would place this episode in 2014 (assuming they wrote this in 2020), in which Uber, Ipads, etc. were all in existence.
I'm more shocked by the fact that the episode where Maude Flanders died happened in "our time" OVER TWENTY YEARS AGO. If the show was following real-time continuity, Rod and Tod would be in their late twenties or early thirties by now.