From the article:
“But that’s a misunderstanding of what the Catholic Church actually teaches.”
It has been pointed out, repeatedly, to the Catholic Church for about 500 years that the chosen term readily leads to misunderstanding. Notwithstanding, the term still stands, is defended vociferously, and all naysayers castigated as ... well, you know. The bottom line is that the term purgatory will still be defended stoutly, and pressed upon people even though it, at very best, conveys the sense of the Bible’s teaching in only the most strained, derived, and heavily footnoted way possible. Mistakes cannot be admitted by the magisterium. They must be defended at all costs. For nothing less than infallibility is at stake, an attribute that properly belongs to God alone ... but never mind.
Every human group has its own jargon. Some of us are saying “purgation” a little more and “Purgatory” a little less. But we have our jargon and its spin-offs, like Dante’s Commedia, whose section on Purgatory is lovely. The term will endure.