Hi Jule, as a late submitter and first time game jammer (with result place 105) let me explain our case, decide for yourself:
We are a team of game engineering (mainly more with the study goal how to create an egine from scratch) students, and uploaded our build before the deadline. However we missed itchs requirement of individual files having to be less than 200mb (we thought it was 500mb). Our more optimized build took some time and finished a bit after the deadline. We couldn't adjust our page, so even though there was a build, itch wouldn't display it and we couldn't update it to the one with less size. My team rage quitted at that point, i reached out to BR and got a late submission link after an hour or so and was able to publish the game nontheless.
With the comments i believe we got some valuable feedback for this and future projects. Our project isn't ideal (nor really in a playable state), we know that. However at least we were able to collect that experience thanks to BR-Teams support <3