Thanks for the followup. I'm trying to remember what the wording was on the previous version of the calendar, but it does seem odd and potentially confusing how it is worded now.
In the repeating section, it says "Recurs for" then has a dropdown for picking a number, then text such as "weeks" or "months" or something else depending on the type of repeat that is chosen.
It's that word "for" that seems to be a very poor choice. I would have chosen "every" for most of the repeat types. I say an event repeats "every 2 weeks on Thursday" and I think everyone understands that it will occur this Thursday, then 2 weeks after that, then 2 weeks after that, etc. But if I say an event repeats "for 2 weeks on Thursday", most people will think that the event will be over, never to repeat again, once the 2 weeks are done.
Questions that can benefit the larger community should be asked in a public forum, not a private message.