Ok - I see the thread has taken an unfortunate turn, but maybe we can get it back on track by focusing on a question that was asked about SWCs and some comments from my personal perspective.
I think SWCs are much closer to a blessing than a burden. They have a place in container culture by virtue of the fact that they offer the busy grower a reduction in time expenditures that he wouldn't otherwise have if the plants were grown in conventional container culture (watered/fertilized from the top). SWCs also offer some benefit in that they can help to ameliorate some of the negative effects of a heavy soil that if watered from the top would be manifest. This can be an important consideration for those using commercially prepared soils based on fine particulates, or homemade soils containing notable fractions of peat, compost, coir, sand, topsoil ......
I do think they are somewhat limiting when compared to the use of a fast draining soil watered from the top and a well-considered nutritional supplementation program.
I approach growing from the perspective of results rather than grower convenience. Not everyone views their growing endeavors from the same perspective, with many placing a considerable premium on convenience. I'm willing to go to some extra effort for gain in growth and vitality, partly because I grow so many plants in very small volumes of soil (bonsai), which tends to magnify anything culturally negative and adds a considerable 'degree of difficulty' factor.
Usually, the concepts of grower convenience and what is best for growth/vitality are mutually exclusive, but in the case of SWCs, the convenience issue is significant enough and the limiting effects small enough that I don't try to discourage anyone from using them, and I rarely mention their limitations.
I don't use SWCs for 3 reasons. First, they need to be made. That in itself isn't a problem, but since the second reason (that I am able to achieve better growth/vitality with well-aerated soils, top-watering, and a nutritional supplementation I have control over) leaves me with no reason to make them, I don't. The third reason is, I have some 300 containerized plants that need watering often. It's necessary for me to make watering rounds daily, and it doesn't matter to me if I water 150 or 160 containers on my daily rounds, which effectively negates any considerations of convenience, which really weren't that important to me to begin with.
When all is said and done, I think it's primarily their potential convenience that provides them (SWCs) a niche in container culture - not the best thing since sliced bread, but certainly not anything to flee from because of significant inherent concept-related issues.
All the above just to say different strokes for different folks.
Al