I would have taken literally anything but what is essentially a re-flavored Wizard, but Larian has probably been working on multiple classes at once and Sorcerer is likely the only one in a good enough state to release. Probably because out of all the classes that had yet to be released, Sorcerers don't really care about reactions.
I think even Barbarians use reactions to a degree. Incidentally the classes with a heavier emphasis on reactions in the earlier levels are the ones that haven't been implemented yet. Though because Larian is pretty much out of classes that don't really need reactions to function, chances are that we're likely to be in the longest wait ever for the patch after this, since it kinda sounds like a decision on what to do with reactions hasn't been reached yet.
Either way, with the current timing, Sorcerer holds very little appeal for me. Maybe if a martial class had been released in between Druid and Sorcerer, I would have considered looking into it. But as it stands, I think I'll sit this patch out, especially since there's no hints of a new companion being available to offset this either.
We don't know much bout it still but Patch 6 is gonna be a huge update and I think it will introduce new areas, new quests. But I understand that. I am planning on taking at least a 6 months break from the game before full release.