it is an insult. there was NO need to say "but all ur other games were better" beyond being passive aggressive. you're not gonna weasel your way out of it, intentional or not.
do you know that some people just... grow around passive-agressive and it's like... normal to them, right? And btw they are just being straightfoward, they are not being passive agressive, just because someone does not sugarcoat does not mean they are insulting