All one needs for "HE" detergent is for it to be low foaming, and rinse cleanly. Front loading washing machines basically are like beating laundry against a rock, though in this case subsitute the sides of the washer's drum for the rock. Too many suds will cushion this action and lead to poor results.
Excess foam too often can also cause damage to the washer's pump by causing it to over heat. Pumps are designed to pump water, not froth, and can over work themselves trying to get what is basically air, out of the washer. As for suds causing bearing failures, well commercial, especially laundromat machines are subjected to oversudsing on what probably is a regular basis (when was the last time you ever saw anyone use "HE" detergent at a coin laundry?); but cope well. The difference is commercial/coin washers are constructed with top grade sealed bearings, which by the way can be replaced as needed. Many front loaders today have poor cheap bearings, and even worse the bearings are part of the two tub system. This makes it very easy for suds to filter into the bearing.
So, leaving aside high sudsing detergents, you can use any detergent, HE labeled or not, long as it meets the above critera. Liquids in general tend to cause more sudsing, HE labeled or not, especially at high water temps.
You can experiment with using non-HE detergents, but the trick is to be able to use the dose required for good soil/stain removal, and keep said soils suspended, without triggering over sudsing. Am doing a very full load of mixed whites (towels, undergarments, washcloths) in my Miele with a little overy 1/2 cup of Tide with Bleach, at 140F, with NO sudsing. Then again we use soap for bathing and all the soap residue in the wash cloths keeps the foaming down. With other loads as little as 1 tablespoon of TWB can cause lots of froth.
YMMV
L.