This is an interesting point. I'd like to round up all the people that hate the prequels for the various reasons,
- R2 having rocket flying legs and oil slick abilities
- characters like Jar Jar Binks, Boss Nass, Dexter the diner cook bro, etc.
- CGI environments and creatures
- over choreographed fight sequences
- midichlorians
- Anakin and Boba as bratty kids
- one note villains like Maul, Jango, Dooku and Grievous
- in-story politics about trade and taxation (so Palpatine can overthrow the republic)
but seemingly loved Last Jedi and it's
- ship piloting, explosion surviving, coin storing, machine gun shooting, AT-ST controlling, BB-8
- Max Kannata, the screeching, big tittied Opera casino, little drunk Alien man
- fake looking throne room, fake looking salt planet, fake looking porgs, fake looking crystal foxes, fake Yoda, etc. etc.
- Kylo, Rey and the lobster guards having a dance off in Snookies club, Chuck Norris looking Luke doing Matrix lightsaber dodges
- Super Liea flying through space, projecting a hologram of your self across the galaxy, EVERYONE being able to use the force, including these poor Disney kids that looked like they walked off the set of the Newsies
- Luke's characterization being ruined post OT, only used to advance the new characters
- 4 whole minutes of Chrome Dome, 5 minutes of Snoke before both are killed off
- out of story politics like the rich being evil, Rose being a dirty communist that wants to send her fist through the upper class, animal abuse, feminism, arms dealing, etc. etc.
And ask them what their deal is.
Save for maybe wooden acting, I'd say TLJ easily double downs on all the flaws the prequels had, and then some. The only difference is, I think Lucas and his crew put more heart into the making of those three films than anyone put into the Last Jedi. It's like the people that made this hate Star Wars.
Hell, I don't see how something as bad as the Last Jedi gets a free pass, but other movies that are similarly bad like Justice League or what have you get completely destroyed critically and financially.