There have been countless cases of Greg's customers being told by him that they don't need to purchase something, or told about a less expensive alternative.
For example, when the Total Chaos UCA's first became available, I think they were around $550 at that time, I asked him about them and he said I didn't need them with my DRE coilovers, because they were a stock replacement length. That could have been an easy sale ... all he would have had to say was that they were much stronger, and the stock ones would fail soon off road, but instead he said the stock ones are plenty strong. He went on to say it would be pointless to buy them. [Later on, as part of his 4x4 performance package, he added a 1" spacer, that did require the Chaos arms to avoid coil bucket contact].
So, anyway, I think you're way off base saying that he would say that about the Rancho shocks if he didn't observe this. Many other forum members have said their have gone bad quickly as well.