Lost you with regard to what? Catholics have the right to seek converts from other Christian denominations, do they not?
I understand you may not think it’s for you, but if the Holy Spirit leads a person in that direction, what’s the problem?
I would say yes. They not only have a right they are mandated by the Bible to make disciples of all the nations. If Catholics believe that people in other denominations are lost then they should out of a love for the lost seek to convert them.
OTOH Catholics should not complain when other denominations through the same Biblical mandate and motives of love seek to convert Catholics to their own denomination or seek to baptize their dead.
He probably got lost on the idea that the Pope needed to say it's OK to follow Christ's command.