Lol...how did you come to this conclusion? It's quite the opposite really. Roglic has been this good or better in early season basically every year since 2018. On the other hand for Remco it's the first time he has been this good this early in the season. First time he's won a WT stage race in spring, first time he's been 2nd in a WT stage race in spring.
Hmm very dubious claim giving the timeline of Remco and what WT he participated in. (or i"m reading more into it than you intended).
Joined in 2019 at 19year old.
Started the season 2020 with 2 victories early season (no WT since covid hit.) cycling started again in august --> (won WT stage race), then the crash happened.
in 2021 he didn't have an early season.
in 2022 his early season (e.g before LBL win.). he partipated in only 2 WT stage races. Tirreno didn't go well (11th but was very active and tried) Itulzia he was 4th (3minutes ahead of Roglic)
2023 is now.
So just want to point out that the lack of data doesn't mean its 'bad'. This is his second full early season (i'm excluding the early season he went from Junior to profs for obvious reasons). So yes, he never had a better start, but on the other hand its only the second time.. so don't know how much weight that statement has as such)