OK, what I'm going to say is not constructive, but, boy, how I hate this type of comments. Where were you 40 years ago? Why did you not prevent it from being terrible? What did you do to replace it with something better?
Yes, it may be "suboptimal" by the 2019 "standards", but back then, I'm pretty sure, people put a lot of thought in to it and tried to make it as good as possible. Just because it looks childish on the current hardware does not make it "pretty terrible".
EDIT: It's almost like complaining that 555 is absolute rubbish comparing to 8266 that can do sooo much more, and why just did they not come up with something better back then.