There is certainly no logic in an acre of land counting for 1 LandDAO token, it makes the purchase of tokenized land difficult, instead the land will be divided into NFTs, this way potential buyers can buy the asset easily and they can also buy in reasonable quantities ...
I think even if LandDAO doesn't tokenize a full arce of land an investor that wants to buy a larger portion may be for agricultural purposes can buy more than one token all he just needs do is to explain to the company the purpose for the land and the needs so that the tokens won't be in different portions of land so I totally agree with what you say, tokenizing a large piece of land will limit the numbers of investors since it will become expensive that split the lands into token so that it can be affordable