I don't get what you are trying to say, so in the same post you call out Sony for being unimaginative then you point out what the current trend is, then you admit it's dumb as shit.
Doesn't this mean Sony is actually doing what is right for providing consumers with better devices even if they don't realise? (I don't know about you but I don't really have a vested interest in Sony's business performance so I couldn't care less beyond whether they make phones I want or not)
Well, you can do much more than just reducing the size of said bezels, even if that particular trend is BS.
Samsung's Galaxy S6 uses an excellent fingerprint reader to unlock the phone and some advanced biometrics for the sportier consumers on top of a genuinely premium build quality, wireless charging and what probably is the best Android camera out there, with brilliant image quality and speed. And even if the curved screen of the Edge version is a gimmick (just get the flat version instead), it offers unparalled image quality. Jaws drop as soon as you turn it on. It is that impressive.
LG's will also offer a beastly camera, probably on par or close to Samsung's. It will also be fairly unique in terms of design and materials, offer a best in class LCD display and some niceties not included in the Galaxy S6, such as a microSD reader. Even if it's less revolutionary than the Galaxy S6, it's still a rather unique looking phone with lots to offer.
Sony's Xperia Z4 is just more of the same. It may have some unusual features such as dust and water protection, but it's doing absolutely nothing new. And being a Sony smartphone, you can bet that the screen is not going to be anything spectacular nor the camera is going to be competitive in a segment that is aiming incredibly high this days.
Flagship devices are meant to grab your attention, and the Xperia Z4 has nothing going in that sense. It's a good phone and it will probably have a better than average battery (the Z3 was particularly great in that sense), but that's about it. It's just not exciting.
It's the Galaxy S4 debacle all over again, only that Sony is in a much more difficult place than Samsung's.