Not sure whether he's selling or not should come in to it. Even if you are selling you commit to running a business "normally" so as not to prejudice the business in respect of anyone buying it. Therefore, he should have been doing what he "normally" would do...hang on, he was, not financially supporting the team and the manager to enable them to compete like Brighton did and Huddersfield did.
Last years spend, credit to him for doing this, was to rebuild a relegated squad with players jumping ship and having to rectify the previous managers mistakes and build a squad to get immediate promotion. You may or may not have liked all or some of the players bought but ultimately Rafa achieved what he was expected to do. With twenty twenty hindsight vision you can quibble about how many he bought but you couldn't be sure who was going to stay fit, who would get suspended, who would play to form or underachieve. The bottom line was to get promotion and Rafa did it plus he got the title.
This year he has had to build a squad to retain PL status. And to help him the Owner running his business "normally" has provided £11.5M to achieve this even with some Sky money in, people off wages books etc. AND we have someone defending him. You couldn't make it up.