Where did you get that piece of misinformation?
The Marlin uses a massive internal locking block, while the winny's are visible.
JMB had to work around Marlin's patents, to design those rifles.
Marlin 94 only has 4 moving main parts. Much easier to keep run'n than the Winny 92 style.
Winny and Marlin are outstanding designs, and can take anything you throw at'em.
Respectfully,
OLG