I mean the results post Covid still count (strong business are able to withstand shocks and keep growing) but the overall point is correct. Their issue is not revenue size or growth (albeit their revenues have been shrinking) but that despite having impressive revenue growth they cannot turn a profit without player sales. That would be the concern, and partially explains that without big player sales their just isn't the slack in the system to generate numerous big buys.
I don't get the theory or importance of profit for football clubs, most clubs barely make any anyway, its usually single to low double digits, it really doesn't mean anything in the grand scheme of things, a club making a loss is still going to spend money on transfers, Banks have no qualms giving money to football clubs, even a pandemic clubs still survive.
You only have to see the elite clubs, with debt and huge turnovers, still spending huge on wages and transfers, profit is the least of the worries for the elite, they are printing money anyway, bigger stadium matchday revenues, CL revenues, huge TV and commercial revenues, lucrative pre season tours and you can see why they service any debt with ease while spending while reporting losses.
The best run club in the World, Bayern Munich before Covid, their profit was £17 million and they had a £570 million turnover then.
Turnover and growth is king in football finance, it's what makes the headlines, profit is hardly ever mentioned because clubs don't make much of it.
Check this Deloitte list of the top 20 clubs in the world, page 14 onwards, profit isn't even mentioned on any club results.