This is tangential to their goal, but this looks like a promising start for mapping Scotland's land ownership, which is notoriously inequal (more than half the land is in the hands of less than 500 people).
I would hardly describe the landed estates of Scotland as 'notoriously unequal'; Much of the land in England is sold as leasehold, such that your house in Lambeth will revert to the Archbishop of Canterbury in 99 years unless some legal procedure (and fee, and solicitor's consideration) is paid (usually when selling). In Scotland, the leasehold is nigh-non-existent, and the standard ownership is a freehold (the property owner own the property in perpetuity).
I think this project is to highlight the rent-seeking behaviour of the leaseholders.
That's a fallacy with an entirely-appropriate name.
Note also that Scotland contains some very large but sparsely populated single owner estates, with around 80% of the population living on a very small percentage of the land (Glasgow and Edinburgh), which may make ownership appear "unequal".
https://beta.gov.scot/publications/improving-transparency-la...
And some stats from Google:
Scotland area - 80,077 km2, Glasgow - 149.9 km2, Edinburgh - 264 km2, i.e. 0.5% (413.9km2) of area is Glasgow or Edinburgh.
Scotland population: 5,295,000, Glasgow: 598,830, Edinburgh: 495,360, i.e. 20% (1,094,190) live in either Glasgow or Edinburgh.
That is reflected in property prices too - you can buy a farm with 452 acres of land (1.8 km2) in the north of Scotland (e.g. http://search.savills.com/list#/r/detail/gbedruedr140125) for a similar price to a 300 m2 flat in central Edinburgh (e.g. http://search.savills.com/list#/r/detail/gbedscedt160229 ).