I've always hated multi-classing and felt it makes an already somewhat janky system even worse. According to Wizards of the Coast though, only slightly more than half of players multiclass, so I guess there are plenty of people that agree with you. Though you can multiclass in Pathfinder, there are a ton of classes that are 'purebreed' versions of multiclass designed to borrow playstyles from the original classes and meld them into something different with internal synergy.
That said said, if you really think Hexblades aren't 'good' (something I disagree with unless we're talking hard cheese, but whatever), then you should honestly LIKE this change, because now it means you get to be a hexblade + a typical warlock subclass and get the benefits of both.
I might have badly expressed myself then (sorry for my broken english) as I 'do' think that Hexblade is 'mechanically' a good subclass by itself.
My issue is that for some, the whole subclass is summarized by its Hex Warrior feature (which is accessible too early), while they dismiss the rest (the theme, the spell lists, the focus on hexes) as if it doesn't really matter to define what the subclass offers and tells as a story.
So, no, i don't think a typical warlock with the pact of the blade is 'better' than a pure Hexblade, that would just be something else (which may be a blast to play for those into it).
In the end I guess everyone seeks and enjoy different things, I personally just find sad that those not really interested into the whole Hexblade package say that merging the one feature other classes abuse is a reason good enough to invalidate the rest of the subclass.
