tldr.
The fact that JW claims about the origin of the Catholic Church are incorrect does not mean that Catholic claims about the origin of the church are true.
Matthew 24:9-28 speaks of 'false prophets' arising prior to and during the 'great tribulation' but prior to Jesus' 'presence'. The 'great tribulation' was the period during 66-70 CE, and cannot be associated with any 'apostasy' of 'true Christianity' after the first century, and Jesus' 'presence' was expected to occur within a generation of Jesus. It didn't happen, and different Christian groups have been making up excuses ever since.