The OP asked if a particular reference to the Middle Eastern owners was racist. It wasn't, and it's a fairly straightforward argument why.
The fact that the two clubs in the PL with Middle Eastern owners have so much more wealth, power, and influence over a huge number of companies, is factual. It is absolutely vast in comparison to any other owners, who are already some of the wealthiest individuals around. It's therefore a legitimate concern for the PL, that currently only applies to the two Middle East owned clubs. Describing them as such is factual, not racist.
If you want to accuse someone of racism, then stick to incidents which are clearly racist, of which there are plenty. Don't give them an easy argument by overstretching.
It reminds me of a lecturer I had at University. He worked with Government ministers, and said that if they didn't want to do something, they would never try to challenge the hard argument. They'd pick up on something easy, and say 'if you got that wrong, then the rest of your argument is probably rubbish too'.