He is asking what if the differences among various religions boil down to linguistic rather than theological distinctions, and what if God is at the end of each religion's path? By considering differences as linguistic, progress can be made, potentially even in theological understanding, by acknowledging that language shapes thought.
Even if correct, that would still be a problem since it would suggest that Buddhism, et cetera, represent valid linguistic paths to God, and render the Great Commission superfluous.
Considering that Origen was anathematized largely for advocating Apokatastasis, which is not even the same as Universalism per se, the words of the Pope, even given your interpretation, are deeply problematic.
And this is not the first time we have seen the current Pope engage in conduct that would be inconceivable in the case of St. John Paul II and Benedict XVI, memory eternal. This is the latest in a long list or confusing, problematic, divisive and controversial acts in his Papacy. We also have
fiducia supplicans, traditiones custodes, the Pachamama incident, the Amazonian synod, indeed even
Amoris Laetitia and the “who am I to judge?” statement concerning homosexual clergy, which frankly is where I think he should have resigned.
I’ve said this before, but had Benedict XVI, memory eternal, remained Pope, I would probably be Roman Catholic right now. I don’t understand why he resigned, I don’t understand how someone whose doctrine contradicts that of both his predecessors could come to power, and why so many Roman Catholics defend his actions rather than taking the very reasonable objections raised by Raymond Cardinal Burke, Cardinal Sarah, HG Athanasius Schneider, and other traditional bishops in the RCC, and theologians such as Dr. Peter Kwasniewsky.