I would raise a question on this as well, the hotel only changed PMS in February and I can tell you it was a 100% required feature was EPOS<-> PMS link, the GM made it very clear.
You may more likely be just in a chicken & egg situation where your not seeing the demand because you dont have a solution… creating the solution wants a justifiable demand. Who takes the leap first. Given other PMS have the option already there thats where those customers will go, if they wanted linked epos they wouldnt take a system without the options then request it. In the same way many might not request it at all given its not an advertised option.
If a property wants a PMS with EPOS side solution they will already look at if you advertise one and skip to next option if you dont.
If they aren’t looking for one they possibly don’t realize its an option, being it that the target would be smaller hotels and B&Bs etc these would often be less techy, sole trader self managed places just used to doing it the way they have always done it.
Alternatively they have seen all those expensive PMS with EPOS options and are just looking for a cheaper option for their small 4-5 bedroom property.