In this instance, your humble opinion is worth even less than usual. The bars are right, the stem is wrong, not just that an ErgoStem has no place there but it is clearly there only because the bike is completely ill fitted for the rider. Based on internet research, all Pinarello Prologos are now owned by people who are clueless about bike fit, otherwise I'd show you what it's supposed to look like. The correct stem is 90-100mm × 73°, e.g. Cinelli 1R or 3ttt Record 84
In this instance, your humble opinion is worth even less than usual. The bars are right, the stem is wrong, not just that an ErgoStem has no place there but it is clearly there only because the bike is completely ill fitted for the rider. Based on internet research, all Pinarello Prologos are now owned by people who are clueless about bike fit, otherwise I'd show you what it's supposed to look like. The correct stem is 90-100mm × 73°, e.g. Cinelli 1R or 3ttt Record 84