It's because we're all still in the middle of getting burned by 1Password spending millions to make our app run worse and do less.
Now, as for whether one should worry because the company screwed their existing customers once already ... that's personal risk tolerance, I guess
My opinion is that 1Password is the best product out there for the majority of users, because they're pretty good about documenting their formats, have a very good export story, their customer service is mostly good, it's a reasonable price, and their UX absolutely spanks Bitwarden up one side and down the other
But, if a few years from now they rip the ssh-agent out of their Electron apps citing some "well, we decided" reason, or they ban 3rd party clients from using their API because "of sekurity," then no one should be surprised that the scorpion stung them