Why is their whole site full of bugs?

I'm just trying to sign up as a new Xfinity customer. 

• At the end of the account-creation process, I got "Sorry about that! We had a problem with our site."
• After fiddling around and using the email activation link, I was able to log in anyway.  But then when I try to view my current services, I get another error: 'A rendering error occurred: can't access property "internet", this.response.services is undefined' and the page goes into a refresh loop.
• I tried to use the feedback form to report these problems, and when I submit that, I get a giant message showing "Something went wrong - Try refreshing the page. If the problem persists, try again later."
• Looking for a phone number to talk to someone, there doesn't seem to be one, so I tried their stupid AI assistant.  This one can't understand what I'm saying, and when I ask to talk to an agent, it insists I need to log in (even though I am already logged in), and the "Sign in" button just shows something like "sending sign-in request" briefly and then loops right back to "you need to sign in."

Frankly at this point I will be shocked if submitting this post even works — I've run into bugs with literally everything I have tried to do on xfinity.com today.

Am I the only one running into bugs at every turn?