I don't see what the problem is. He'd make a good substitute
Yeah but we don't need any super expensive 30yo substitutes. That's the mindset that got us Paulinho and in 1-2 years people will get crazy over him too since he will be even worse than now but still on huge wages and we'll never get rid of him. Same would happen with Di Maria.
We need fresh players not some old guy that just wants to collect some trophies from the bench while earning a huge salary.