No way, disagree. Humax and Echostar are historically the two worst offenders for their software not handling changes in the broadcast data because they did not read and implement the standard, or at the very least have their software coded well enough to ignore stuff it does not understand. They have both in the past released, at best, beta grade software then moaned about changes as if they are the fault of the broadcaster, and seriously dragged their heels in releasing updates (particularly Humax) as if they are hard done by for having to update their software to accommodate.
I agree with you that standards are often a little vague and open to interpretation but in this instance I'm not willing to accept that this is likely to be what's happened. The HDS-600RS software is immature to say the least, particularly in the way it deals with scheduling and presentstion of the recordings library, and I don't see owners of any other freesat boxes suddenly having a problem. I might be reckoning 2+2 equals 5 but I'm willing to bet that's not the case.
There is a standard released that their software must adhere to to be able to wear the freesat or freeview logo. If it does not comply that is their problem and their problem alone.
That said, I don't even believe there has been a change in the data, I'm relatively sure the software update broke the series link functions - although willing to be corrected on that one!