No, both of those appear to be 2560 at 30", which is a lower DPI than the one under discussion. Since that's the only way that the 27" screens are better than the pre-existing 30" screens, it must be the metric that was meant.
That's 30" diagonal at a different aspect ratio (16:10), so the DPIs aren't as far off as they sound. The bigger problem is that neither of the linked 30" panels are LED backlit.
