I don't even disagree with the argument that the comedy in Endwalker was mostly a "miss" for me. But, to be honest, the VAST majority of comedy in FFXIV is a miss for me. I can easily point to the 4.0 WAR quests as an example where I just did not care and never even cracked a smile.
But the "slice of life" arguments are hyperbolic, from where I sit. For the most part, these were not segments where we help Krile ask out the cute boy in English class or help Estinien try out for the basketball team. Even The-Scene-Which-Shall-Not-Be-Named and the dreaded Estinien night scene are either commentary on the events of the story, or (particularly in the latter case) the characters trying to psych themselves (and the WOL) for whatever dangers are about to come. Do I think these scenes were 100% necessary and added integral depth and intrigue into the plot? No. But where I stand, they also aren't "abject proof that SE has lost its way", either.