It's pretty clear the disconnect here, there's one side that says "Do this optimization it's trivial" and the other side going "We have to write an entire text renderer that's far from trivial" and the result was this blogpost saying "Hey we didn't this thing and it was trivial! All we had to do was write an entire text renderer first". So in a straight forward sense yes, the concept is trivial, but in a more real sense it's not, since your straight forward idea is straight forward only once you've done something difficult.
okay. so. a bit offtopic, but ... how come it's 2022 and Microsoft, with all its glory and industry leading best practices and trillions of microdollars of Azure-colored dollars valuation ... doesn't have a library for this? you know, the company that makes the thing, the suite that is used worldwide, underground, spacestationside, all the 365 days of the year.
I mean it's no wonder the introduction of the computer doesn't show up on the GDP charts when the industry is in fucking shambles and isn't even ashamed for it ... https://www.youtube.com/watch?v=5IUj1EZwpJY&t=35m40s
I couldn't imagine how bad your team would treat team members with inferior authority when your team treat your own users like this.
Non native speaking skill is really no excuse here.