I think you’re going out of your way to defend netcode that has some pretty significant flaws.
The following is a list of games that blow SFV netcode away:
Melty Blood with Caster
I don’t play fightcade, so I won’t even bother comparing the two, but when comparing rollback netcode, SFV is at the bottom of the barrel. It sucks to put it simply. I am sure in a year or so, it will be perfectly functional, but the problems listed by Spliffy are the rule and not the exception. Those same problems when compared to other rollback netcodes are the exceptions and not the rule.
The problem with SFV is the way in which their netcode is handled. You don’t have to take my word for it though. Here’s MikeZ’s tweet criticizing the netcode with a response from Mauve agreeing with him. That’s a tweet from a person who has successfully implemented netcode (GGPO) and a response from a person who is probably the single most authority on FG netcode as far as I am concerned agreeing with him. There is nothing to defend here.
That’s not to say that the other person is wrong. The extra bad lag may be because of people with shitty connections dropping in to try out Juri… but if there is one company who could probably make the netcode worse with each passing patch, that company would be Capcom.