I don't think that it's really a misunderstanding, and an apology isn't required. Think of this more as a clarification, or maybe rather an expansion.
Way too many people get caught up in seeing what has just arrived, or offered, and don't realize that this is just one particular set of values that are available. For instance, the Alstom Citadis that Metrolinx is purchasing is capable of running at 100km/h. That's this particular version - more are limited to 75km/h. And both Bombardier and Siemens offer competing products that are also capable of those same speeds, even though the version that we happened to purchase isn't.
So while a comparison of what two types of LRT is useful and welcome, it's also prudent to be aware that they are by no means a be-all, end-all either.
Dan
Toronto, Ont.