[morini]

took a bit longer this time to sign contract and only one year, while Hamilton wanted more

The only place I've read this theory is on tabloid sports sites and the "comments sections" underneath webpage articles. I've not read any substantiated, factual report that Hamilton wanted longer than 1 year. To the contrary, both Toto Wolff and Hamilton say in public than a year was mutually agreed upon.

I am not saying you are wrong, I'm just saying nobody knows the real story there apart from people inside Mercedes and Hamilton himself. Everything we read about it is pure speculation.