Different context entirely.
A major theme of this video is getting to see how a series developed. He says that until now he had never played Persona 3, because his impression of Persona 4 had been "it's Persona 5 if it was pulled out of the oven too early," and apparently now that he actually has played Persona 3 in some form, it gave him the feeling he went in expecting: that it feels like Persona 5 "if they had just finished spraying non-stick spray on the frying pan." IE basically he sees the series as an iterative concept that gets more fleshed out with each go.
(I'm not sure how accurate that is, not being a huge Persona fan myself, I'm just reporting what he said).
He does however complain that this is dulled somewhat because the remake tries to "update" the game to be more like Persona 5, which ends up introducing what he considered tonal inconsistencies because clearly Persona 3 was not designed with 5's aesthetics in mind.
He ends the video saying he doesn't like the trend of companies remaking old games to make them more like the current installments. He makes the argument (that of course, people like me have been making for years) that there is some value in seeing how a series progressed and such remakes distort that.
He makes several comparisons to support his point, like seeing musicians before they improved enough to go professional..... or the afformentioned one, the whole "watching a girl get older" one.