Jose Abreu was considered one of the top 1 or 2 hitters not in the majors when he signed out of Cuba with the white sox. He got 6 years/$68 million. Suzuki isn't even the best hitter in his own league.
6-7 years makes Suzuki 34 or 35 when that contract ends. He aint gonna take that. 3-4 years gives him another shot in free agency to make more money. 4 years, 50 million.
The Cuban leagues are pretty medicore, particularly for pitching.
The Japenese players will sign shorter deals so they dont have to keep paying their Japanese team a portion. Tsutsugo signed for two years. Akiyama for three.
Suzuki is the reigning MVP. And Suzuki is better than Ohtani was in Japan (at hitting, anyway)