“While it was not the first system to Romanize Chinese,”
That’s right, even though the article sets the premise to make it seem that it was.
Pinyin is probably the best. Others rely a lot of apostrophes so it gets messy.
And this article has some propaganda it, eg how the literacy rate has gone way up. That has nothing to do with pinyin. Literacy rate has been high in Hong Kong and Taiwan without pinyin.
It’s an improvement over Wade Giles with its apostrophes and where everything is spelled with “ch”. The “q”s and “x”s are weird at first, but one gets used to them.