Well, I wouldn't say that at all. Only SOME of those companies are "excellent" IMO, some are downright shady.
Sure, all designs have tradeoffs, but it's pretty ignorant to think that suspension does not advance and that you can get a better bikes with less negatives these days (and in the future).
I have a horst link bike, and a "TNT" single pivot, but I've owned others and demoed about everything else out there. The TNT actually pedals better than my horst link, which simply squats (and robs power) excessively when the grades get steep in my middle-ring. I have to shift to granny to make it "keep going", not because the grade is too steep, but because the difference in energy transmission is significant. I usually run the same gear combo as if I was running middle ring. My 'TNT" bike only has one ring up front though, so from a design standpoint it was much eaiser to make it pedal well in the range of gears it was designed to be equipped with. It's much more challenging to make a bike that is designed to have 2 or 3 rings up front.
The better braking characteristics with the horst link can be nice, but they can also "extent" and stinkbug under braking, not to mention that most single pivots "squat", which helps keep the geometry better suited for heavy braking. These traits are not always very significant and negated by some of the parallel link designs and active-braking-pivot designs we see today.
All in all, the difference between a well designed horst link and a well designed linkage-single-pivot like my TNT turner is pretty much nil. Put a better shock on one and it will be the better bike. Put the exact same parts on both and you'll find very little differenc, and slight advantages to each in certain situations.
If I wanted a new bike, the suspension would be ONE of the very important considerations, but not the only one. There are a few systems that I would consider, but the bike has to be complete from all the other aspects as well. That said, I was amazed by the power transfer of the DW link on flat and uphill surfaces especially. This was combined with very active suspension under power and ability to absorb square-edged hits. This is what I'd probably try to get for a new bike, although I'd be open to a few other designs.