Honestly, I'm not sure knowing tension gives us any useable knowledge. We'll still set up the guitar the same way we always do - by feel and/or measurement of the action and relief. We could measure the tension ourselves with a little thought and a kitchen scales.
If you have a guitar that is fragile in some way and are worried about the tension, I wouldn't put ANY strings on it until was professionally repaired. Way too risky.
If EBMM don't publish their tensions, I'm sure they have good reason. But I wouldn't think secrecy has anything to do with it if we could measure it ourselves at home!
Mostly I feel it is just good to have specifications of products before I buy them.
Tension specs may be helpful when comparing to other brands.
How they may feel.
True, but that's only part of the story - tone, longevity, quality control, and how they feel under the fingers (particularly wound strings) cannot be quoted in numbers.