I'm going to respectfully disagree with just about everything you've said.
The size of the rectangle in the lock strap is irrelevant. Only the forward most edge of the opening engages the blade when opened or closed. The length and width of the opening are meaningless. It's adjustable so that it can be adjusted as the parts wear, or are dropped. The blade is most certainly harder than the locking strap so erosion over time is inevitable.
The blade is riding bearings which are also adjustable so that you can remove any lateral movement, make the action slower, or make the action faster. The width of the opening compared to the blade thickness is irrelevant because it's not meant to prevent any lateral movement.
Super glue versus thread lock. I'm locking threads so I'll stick to the media made for this purpose. Super glue or nail polish is your decision, but don't expect any warranty help if you have issues.
Distal taper has been used on knives since the dawn of time. It doesn't take sophisticated equipment to make this happen. This drop point blade is properly made without the distal taper. The cutting edge of a drop point blade is opposite the spine by design. It typically makes for a better slicer and cutter. The only place a distal taper lends any meaningful purpose is to knives made for stabbing and piercing. Distal taper will reduce the blade strength at the tip with the tradeoff being better puncture and stabbing. I just checked and confirmed that I don't have a single drop point blade where I would like for the blade to be thinner at the tip. None...
There were no mistakes in this knife's design. It's right as rain as far as I'm concerned.
Nothing is perfect for everyone so you should be judging whether or not it meets the design objective, and not what you'd like to see, subjectively.
<I know... put the bottle down and step away from the keyboard...>