He was also still coming back from the crash with inconsistent perfs but growing. And at least a full winter training behind him.
He desperately wanted to measure himself.
He doesn’t need to do that any more.
He can now prep fully for only his objectives like he did Vuelta last year. San Sebastián was a bonus. As LBL will be this year. Not an objective.
I expect some indications of form at Catalunya (like Itzulia last year). No need for more.
To the bolded, I don't think San Sebastian was a bonus, but confirmation that he was ready for the Vuelta. LBL should be for the Giro what San Sebastian was for the Vuelta last year. Doubtless defending his title in Liege is, moreover, an objective, just not as big as the Giro, but an objective nonetheless and as a Belgian no less. So he won't take the start to finish second. In any case, he will be in great shape by then, because if he is not he won't be ready for the Giro. So he will.
As for Catalunya, it will be different than the Basque Country last year, because he is building for the Giro not the Vuelta, so it's difficult to gauge how he will go. Catalunya runs from 20-26 March, whereas the grande partenza of the Giro is on 6 May. With 6 weeks between them, in theory Remco could hit a first peak to then take an active rest before the final Giro build-up. Otherwise he could be a tad below really good form, although I doubt the team would bring him to such a hard stage race if he weren't in competative shape for victory, but we shall see.