Well, yes and no. ECMA-48 is an established standard, and dates from 1976. The standards in use today have been around that long, long enough even that termin

Well, yes and no. ECMA-48 is an established standard, and dates from 1976. The standards in use today have been around that long, long enough even that terminals that aren't ECMA-48 compatible are exceedingly rare nowadays. So it's really the reverse of what you state. There has been a lot of effort put into standardization, and compared to the 1960s we are highly uniform in the 21st century and widely adhere to an almost 50-year-old standard. It's not the long-dead systems that spoil this. As evidenced from the headlined article, it is the still active systems adding things like vendor-specific commands for setting titles and clipboards and colours and displaying images and whatnot that have introduced the complexity. A strictly ECMA-48 only emulator doesn't have even half of the problems mentioned in the headlined article, because the control sequences mentioned are extensions to the standard introduced by various GUI terminal emulator programs.