Totally fair! This is an experiment - we'll see what comes out in the wash. The biggest impact I'm hoping for is to encourage more sites to remove their "share to Twitter" buttons.
My bet is that your reason for building this widget ("The biggest impact I'm hoping for is to encourage more sites to remove their 'share to Twitter' buttons") is misaligned with what web owners want (publicity, exposure, discoverability, engagement) which you get by using the largest megaphone. X
I see it almost as a way to do the share menu that mobile phones have. I tested the Share Openly button on my phone and it not only opened Threads and Bluesky much faster than the share menu on my version of iOS, it also added not just the URL but the title as well.