>I find this contradicting. They talk about lag, but offer bandwidth. What about latency? Shouldn't they talk about milliseconds of delay from your computer to the server and back?
It's not necessarily contradicting, but it shows a fundamental misunderstanding, or rather, lack of knowledge. You are absolutely right that they should talk about latency.
But at the same time, one has to acknowledge that nowadays latency seldom is a problem, and bandwidth usage by various applications has increased. But when stuff online happens too slow for whatever reason, it's colloquially referred to as 'lag'. So it's somewhat understandable that some people (begin to) confuse things.
EDIT: Had a second look at the Advert; now it's obvious why the distinction is missing; as they (naturally) separate their offerings by bandwidth, not latency.
It's not necessarily contradicting, but it shows a fundamental misunderstanding, or rather, lack of knowledge. You are absolutely right that they should talk about latency.
But at the same time, one has to acknowledge that nowadays latency seldom is a problem, and bandwidth usage by various applications has increased. But when stuff online happens too slow for whatever reason, it's colloquially referred to as 'lag'. So it's somewhat understandable that some people (begin to) confuse things.
EDIT: Had a second look at the Advert; now it's obvious why the distinction is missing; as they (naturally) separate their offerings by bandwidth, not latency.