Hey, I hope this doesn't come across patronising, I just wanted to say what you achieved is impressive... you look at all the jams on this site, the number of submissions compared to joined... it rarely goes above 25%! You are in the much smaller percentage of people that completed something really hard in a short time. That is a fantastic achievement and every jam should be used to try new things and learn something which will improve your skills all the time - which means most jam entries are janky and need work... that's the point, we're pushing ourselves and doing things we haven't tried before - some of us have been coding decades, some it's their first project. All that matters is you enjoy the process and keep on designing and developing... we're here for it! So yes, we want to play your game!
That doesn't mean pressure yourself to release multiplatform. That is the "pro" of WebGL, being browser based it is open to everyone, but the "cons" are it often affects quality, messes with resolution, can affect input sensitivity, so the trade-off for reaching more people is the end result of your game can be affected, so that can mean more play testing and debugging, which is very hard in a short game jam. Don't let any of that sap the fun out of it. Screw the guy who uses Mac - He just wanted to say the game looks great and you should feel proud.