Firstly, we'd already bought Kone, so it's not like Vic went to make way for him ffs. Vic went to make way for the fantastic Lukaku, but hardly surprising that a negative goon like you skipped past that minor detail.
Secondly, Kone is a 1 in 3 striker over his career, Vic's record is nearer 1 in 7. Despite his improvement last season for £6m he simply had to go, he's never going to make a top PL striker, nor will he ever hit 1 in 3 consistently either imo.
Victor's job wasn't to be a top PL striker
His job was to be a man who charged at defenses and created opportunities for others