That's why "cash in hand" was one of their selling points.
If the buyers had to get loans, sell other assets, etc to make it happen, it would introduce risk - in delay, extra negotiations or even total failure - for the seller.
Having your financing together is going to give you a leg up in a competitive deal for sure. Of course not all deals are competitive so it might not matter. In some cases your bank will give you a letter saying they are willing to lend you $X under reasonable circumstances which might help you get in the door with with sellers by convincing them you can close even if you don't actually have the cash upfront.
If the buyers had to get loans, sell other assets, etc to make it happen, it would introduce risk - in delay, extra negotiations or even total failure - for the seller.