Patents are notoriously complicated and time consuming.
If they are too vague then you cant map infringement… if you are too specific, then its easy to change small parts and not be covered either.
Electroneum have used one of the worlds best legal firms for copyright, they know what they are doing.
Remember though, the goal of the patent was not to block all other companies and monopolise, but to protect the Electroneum brand and concept whilst bringing credibility to the venture in the eyes of the industry.
Keep in mind that anyone can bring an instant payment platform to their infrastructure, but without the other elements (such as commercial incentive and viral growth from the airdrop or regulatory compliance via KYC) it means very little.