Oh my, what a trainwreck.
From what I can see, the 4mm binding posts are securely bolted to a plate and that plate is affixed to the cabinet. I see no problem with that. Also, using a torch to show an 'air leak' is not valid. They are solid, not a hollow tube.* One terminal is red, one white and the light shining through will show differently. You can see the plate has been sealed to the cabinet in the original shot, showing a white silicone-like substance. There is also some deformation (raised) in the centre of the plate. Two additional screws would solve that.
* the reviewer has stated they are hollow. My mistake.
The leaks around the tweeter to wave guide assembly should be addressed and seals should be sent to any customers who had previously purchased the WG Sointuvas.
The internal cable dress should also be addressed, but should also be put in perspective. Most high end speakers I have seen and worked on over the decades have at most a few stapled down cables here and there and most have free floating internal cables. Sure, you get the odd vibration and cable touching the back of a driver causing trouble, but it's hardly as bad as the reviewer is making out. Ironically, it's the cheapest speakers these days that have the carefully foam wrapped and secured cables. March will learn from that and implement the fix probably immediately.
I think the lesson here is a classic case of diverting blame going horribly wrong. I also see the reviewer as making a number of mountains out of molehills. A little balance seems to be in order. When a number of reviewers start taking pot shots at each other from their platforms all over this March Audio speaker and its measurements, you really have to ask whether they should have left it alone in the first place. Trouble just seems to follow some people.
Remember this post?
None of this however, would stop me buying a pair of Sointuvas if I was in the market for such a speaker.
Last time I checked, we are all adults. HiFi is just an appliance to most people- they turn it on and off and really don't think much more about it. Maybe the vast majority have got it right and us 'audiophiles' are the silly ones?