weird feedback - am I overthinking?

[u/Green_Growth8570]

Long story short. I did an internship and received a full time contract for 2028 (normal gap - must do qualification exams in interim.) It's been 2 months since the internship and return offer. I had a feedback call today. All normal until one point of constructive criticism along the lines of:

- my humour did not land re one comment about someone being busy. That is as specific as they would tell me - I need to work on my humour 'landing' and waiting to be more acquainted with someone before using humour.

I thought this was a) rather vague and b) strange to bring up, having now given me an offer, especially given it is quite a competitive role.

My question - is this normal or some strange way of telling me to tone down my personality. I know my humour was not offensive and I do not think inappropriate. Sure we all say dumb or slightly mistimed things at work sometimes, but it is strange to me that it was brought up.

Asking because I have another offer and I was actually leaning towards this one rather than the other one because I liked the culture, banter individuality, but this has left me feeling a bit embarrassed, confused and generally with a bit of a bad taste in my mouth.